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2	CCAMP Working Group                                             H. Zheng
3	Internet-Draft                                       Huawei Technologies
4	Intended status: Standards Track                                  A. Guo
5	Expires: May 21, 2020                                         Individual
6	                                                                 I. Busi
7	                                                     Huawei Technologies
8	                                                                   Y. Xu
9	                                                                   CAICT
10	                                                                 Y. Zhao
11	                                                            China Mobile
12	                                                                  X. Liu
13	                                                          Volta Networks
14	                                                       November 18, 2019

16	               A YANG Data Model for Ethernet TE Topology
17	                 draft-zheng-ccamp-client-topo-yang-08

19	Abstract

21	   A transport network is a server-layer network to provide connectivity
22	   services to its client.  In this draft the topology of Ethernet with
23	   TE is described with YANG data model.

25	Status of This Memo

27	   This Internet-Draft is submitted in full conformance with the
28	   provisions of BCP 78 and BCP 79.

30	   Internet-Drafts are working documents of the Internet Engineering
31	   Task Force (IETF).  Note that other groups may also distribute
32	   working documents as Internet-Drafts.  The list of current Internet-
33	   Drafts is at https://datatracker.ietf.org/drafts/current/.

35	   Internet-Drafts are draft documents valid for a maximum of six months
36	   and may be updated, replaced, or obsoleted by other documents at any
37	   time.  It is inappropriate to use Internet-Drafts as reference
38	   material or to cite them other than as "work in progress."

40	   This Internet-Draft will expire on May 21, 2020.

42	Copyright Notice

44	   Copyright (c) 2019 IETF Trust and the persons identified as the
45	   document authors.  All rights reserved.

47	   This document is subject to BCP 78 and the IETF Trust's Legal
48	   Provisions Relating to IETF Documents
49	   (https://trustee.ietf.org/license-info) in effect on the date of
50	   publication of this document.  Please review these documents
51	   carefully, as they describe your rights and restrictions with respect
52	   to this document.  Code Components extracted from this document must
53	   include Simplified BSD License text as described in Section 4.e of
54	   the Trust Legal Provisions and are provided without warranty as
55	   described in the Simplified BSD License.

57	Table of Contents

59	   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
60	   2.  Terminology and Notations . . . . . . . . . . . . . . . . . .   3
61	   3.  YANG Model for Topology of Client Layer . . . . . . . . . . .   3
62	     3.1.  YANG Tree for Ethernet Topology . . . . . . . . . . . . .   3
63	   4.  YANG Code for Topology Client Layer . . . . . . . . . . . . .  21
64	     4.1.  The ETH Topology YANG Code  . . . . . . . . . . . . . . .  21
65	   5.  Considerations and Open Issue . . . . . . . . . . . . . . . .  63
66	   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  63
67	   7.  Manageability Considerations  . . . . . . . . . . . . . . . .  63
68	   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  63
69	   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  64
70	   10. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  64
71	   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  65
72	     11.1.  Normative References . . . . . . . . . . . . . . . . . .  65
73	     11.2.  Informative References . . . . . . . . . . . . . . . . .  65
74	   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  66

76	1.  Introduction

78	   A transport network is a server-layer network designed to provide
79	   connectivity services for a client-layer network to carry the client
80	   traffic transparently across the server-layer network resources.  The
81	   topology model in Traffic-Engineered network has been defined in both
82	   generic way and technology-specific way.  The generic model, which is
83	   the base TE YANG model, can be found at [I-D.ietf-teas-yang-te-topo].
84	   Technology-specific models, such as OTN/WSON topology model, have
85	   also been defined in [I-D.ietf-ccamp-otn-topo-yang] and
86	   [I-D.ietf-ccamp-wson-yang] respectively.  Corresponding topology on
87	   client-layer is also required, to have a complete topology view from
88	   the perspective of network controllers.

90	   This document defines a data model of all client-layer Topology,
91	   using YANG language defined in [RFC7950].  The model is augmenting
92	   the generic TE topology model, and can be used by either applications
93	   exposing to a network controller or among controllers.  Furthermore,
94	   it can be used by an application for topology description in client-
95	   layer network.

97	2.  Terminology and Notations

99	   A simplified graphical representation of the data model is used in
100	   this document.  The meaning of the symbols in the YANG data tree
101	   presented later in this document is defined in [RFC8340].  They are
102	   provided below for reference.

104	   o  Brackets "[" and "]" enclose list keys.

106	   o  Abbreviations before data node names: "rw" means configuration
107	      (read-write) and "ro" state data (read-only).

109	   o  Symbols after data node names: "?" means an optional node, "!"
110	      means a presence container, and "*" denotes a list and leaf-list.

112	   o  Parentheses enclose choice and case nodes, and case nodes are also
113	      marked with a colon (":").

115	   o  Ellipsis ("...") stands for contents of subtrees that are not
116	      shown.

118	3.  YANG Model for Topology of Client Layer

120	3.1.  YANG Tree for Ethernet Topology

122	   module: ietf-eth-te-topology
123	     augment /nw:networks/nw:network/nw:network-types
124	               /tet:te-topology:
125	       +--rw eth-tran-topology!
126	     augment /nw:networks/nw:network/nw:node
127	               /nt:termination-point:
128	       +--rw ltp-mac-address?
129	       |       yang:mac-address
130	       +--rw port-vlan-id?
131	       |       etht-types:vlanid
132	       +--rw maximum-frame-size?                       uint16
133	       +--rw (direction)?
134	       |  +--:(symmetrical)
135	       |  |  +--rw ingress-egress-bandwidth-profile
136	       |  |     +--rw bandwidth-profile-type?
137	       |  |     |       etht-types:bandwidth-profile-type
138	       |  |     +--rw CIR?                      uint64
139	       |  |     +--rw CBS?                      uint64
140	       |  |     +--rw EIR?                      uint64
141	       |  |     +--rw EBS?                      uint64
142	       |  |     +--rw color-aware?              boolean
143	       |  |     +--rw coupling-flag?            boolean
144	       |  +--:(asymmetrical)
145	       |     +--rw ingress-bandwidth-profile
146	       |     |  +--rw bandwidth-profile-type?
147	       |     |  |       etht-types:bandwidth-profile-type
148	       |     |  +--rw CIR?                      uint64
149	       |     |  +--rw CBS?                      uint64
150	       |     |  +--rw EIR?                      uint64
151	       |     |  +--rw EBS?                      uint64
152	       |     |  +--rw color-aware?              boolean
153	       |     |  +--rw coupling-flag?            boolean
154	       |     +--rw egress-bandwidth-profile
155	       |        +--rw bandwidth-profile-type?
156	       |        |       etht-types:bandwidth-profile-type
157	       |        +--rw CIR?                      uint64
158	       |        +--rw CBS?                      uint64
159	       |        +--rw EIR?                      uint64
160	       |        +--rw EBS?                      uint64
161	       |        +--rw color-aware?              boolean
162	       |        +--rw coupling-flag?            boolean
163	       +--rw eth-svc!
164	          +--rw client-facing?               boolean
165	          +--rw supported-classification
166	          |  +--rw port-classification?   boolean
167	          |  +--rw vlan-classification
168	          |     +--rw vlan-tag-classification?   boolean
169	          |     +--rw outer-tag
170	          |     |  +--rw supported-tag-types*
171	          |     |  |       etht-types:eth-tag-classify
172	          |     |  +--rw vlan-bundling?         boolean
173	          |     |  +--rw vlan-range?
174	          |     |          etht-types:vid-range-type
175	          |     +--rw second-tag
176	          |        +--rw second-tag-classification?   boolean
177	          |        +--rw supported-tag-types*
178	          |        |       etht-types:eth-tag-classify
179	          |        +--rw vlan-bundling?               boolean
180	          |        +--rw vlan-range?
181	          |                etht-types:vid-range-type
182	          +--rw supported-vlan-operations
183	             +--rw asymmetrical-operations?       boolean
184	             +--rw transparent-vlan-operations?   boolean
185	             +--rw vlan-pop
186	             |  +--rw vlan-pop-operations?   boolean
187	             |  +--rw max-pop-tags?          uint8
188	             +--rw vlan-push
189	                +--rw vlan-push-operation?   boolean
190	                +--rw outer-tag
191	                |  +--rw supported-tag-types*
192	                |  |       etht-types:eth-tag-type
193	                |  +--rw vlan-range?
194	                |          etht-types:vid-range-type
195	                +--rw second-tag
196	                   +--rw push-second-tag?       boolean
197	                   +--rw supported-tag-types*
198	                   |       etht-types:eth-tag-type
199	                   +--rw vlan-range?
200	                           etht-types:vid-range-type
201	     augment /nw:networks/nw:network/nw:node
202	               /nt:termination-point/tet:te
203	               /tet:interface-switching-capability
204	               /tet:max-lsp-bandwidth/tet:te-bandwidth
205	               /tet:technology:
206	       +--:(eth)
207	          +--rw eth-bandwidth?   uint64
208	     augment /nw:networks/nw:network/nw:node/tet:te
209	               /tet:te-node-attributes
210	               /tet:connectivity-matrices/tet:path-constraints
211	               /tet:te-bandwidth/tet:technology:
212	       +--:(eth)
213	          +--rw eth-bandwidth?   uint64
214	     augment /nw:networks/nw:network/nw:node/tet:te
215	               /tet:te-node-attributes
216	               /tet:connectivity-matrices
217	               /tet:connectivity-matrix/tet:path-constraints
218	               /tet:te-bandwidth/tet:technology:
219	       +--:(eth)
220	          +--rw eth-bandwidth?   uint64
221	     augment /nw:networks/nw:network/nw:node/tet:te
222	               /tet:information-source-entry
223	               /tet:connectivity-matrices/tet:path-constraints
224	               /tet:te-bandwidth/tet:technology:
225	       +--:(eth)
226	          +--ro eth-bandwidth?   uint64
227	     augment /nw:networks/nw:network/nw:node/tet:te
228	               /tet:information-source-entry
229	               /tet:connectivity-matrices
230	               /tet:connectivity-matrix/tet:path-constraints
231	               /tet:te-bandwidth/tet:technology:
232	       +--:(eth)
233	          +--ro eth-bandwidth?   uint64
234	     augment /nw:networks/nw:network/nw:node/tet:te
235	               /tet:tunnel-termination-point
236	               /tet:client-layer-adaptation
237	               /tet:switching-capability/tet:te-bandwidth
238	               /tet:technology:
239	       +--:(eth)
240	          +--rw eth-bandwidth?   uint64
241	     augment /nw:networks/nw:network/nw:node/tet:te
242	               /tet:tunnel-termination-point
243	               /tet:local-link-connectivities
244	               /tet:path-constraints/tet:te-bandwidth
245	               /tet:technology:
246	       +--:(eth)
247	          +--rw eth-bandwidth?   uint64
248	     augment /nw:networks/nw:network/nw:node/tet:te
249	               /tet:tunnel-termination-point
250	               /tet:local-link-connectivities
251	               /tet:local-link-connectivity
252	               /tet:path-constraints/tet:te-bandwidth
253	               /tet:technology:
254	       +--:(eth)
255	          +--rw eth-bandwidth?   uint64
256	     augment /nw:networks/nw:network/nt:link/tet:te
257	               /tet:te-link-attributes
258	               /tet:interface-switching-capability
259	               /tet:max-lsp-bandwidth/tet:te-bandwidth
260	               /tet:technology:
261	       +--:(eth)
262	          +--rw eth-bandwidth?   uint64
263	     augment /nw:networks/nw:network/nt:link/tet:te
264	               /tet:te-link-attributes/tet:max-link-bandwidth
265	               /tet:te-bandwidth/tet:technology:
266	       +--:(eth)
267	          +--rw eth-bandwidth?   uint64
268	     augment /nw:networks/nw:network/nt:link/tet:te
269	               /tet:te-link-attributes
270	               /tet:max-resv-link-bandwidth/tet:te-bandwidth
271	               /tet:technology:
272	       +--:(eth)
273	          +--rw eth-bandwidth?   uint64
274	     augment /nw:networks/nw:network/nt:link/tet:te
275	               /tet:te-link-attributes/tet:unreserved-bandwidth
276	               /tet:te-bandwidth/tet:technology:
277	       +--:(eth)
278	          +--rw eth-bandwidth?   uint64
279	     augment /nw:networks/nw:network/nt:link/tet:te
280	               /tet:information-source-entry
281	               /tet:interface-switching-capability
282	               /tet:max-lsp-bandwidth/tet:te-bandwidth
283	               /tet:technology:
284	       +--:(eth)
285	          +--ro eth-bandwidth?   uint64
286	     augment /nw:networks/nw:network/nt:link/tet:te
287	               /tet:information-source-entry
288	               /tet:max-link-bandwidth/tet:te-bandwidth
289	               /tet:technology:
290	       +--:(eth)
291	          +--ro eth-bandwidth?   uint64
292	     augment /nw:networks/nw:network/nt:link/tet:te
293	               /tet:information-source-entry
294	               /tet:max-resv-link-bandwidth/tet:te-bandwidth
295	               /tet:technology:
296	       +--:(eth)
297	          +--ro eth-bandwidth?   uint64
298	     augment /nw:networks/nw:network/nt:link/tet:te
299	               /tet:information-source-entry
300	               /tet:unreserved-bandwidth/tet:te-bandwidth
301	               /tet:technology:
302	       +--:(eth)
303	          +--ro eth-bandwidth?   uint64
304	     augment /nw:networks/tet:te/tet:templates
305	               /tet:link-template/tet:te-link-attributes
306	               /tet:interface-switching-capability
307	               /tet:max-lsp-bandwidth/tet:te-bandwidth
308	               /tet:technology:
309	       +--:(eth)
310	          +--rw eth-bandwidth?   uint64
311	     augment /nw:networks/tet:te/tet:templates
312	               /tet:link-template/tet:te-link-attributes
313	               /tet:max-link-bandwidth/tet:te-bandwidth
314	               /tet:technology:
315	       +--:(eth)
316	          +--rw eth-bandwidth?   uint64
317	     augment /nw:networks/tet:te/tet:templates
318	               /tet:link-template/tet:te-link-attributes
319	               /tet:max-resv-link-bandwidth/tet:te-bandwidth
320	               /tet:technology:
321	       +--:(eth)
322	          +--rw eth-bandwidth?   uint64
323	     augment /nw:networks/tet:te/tet:templates
324	               /tet:link-template/tet:te-link-attributes
325	               /tet:unreserved-bandwidth/tet:te-bandwidth
326	               /tet:technology:
327	       +--:(eth)
328	          +--rw eth-bandwidth?   uint64
329	     augment /nw:networks/nw:network/nw:node/tet:te
330	               /tet:te-node-attributes
331	               /tet:connectivity-matrices
332	               /tet:label-restrictions/tet:label-restriction:
333	       +--rw tag-type?   etht-types:eth-tag-type
334	       +--rw priority?   uint8
335	     augment /nw:networks/nw:network/nw:node/tet:te
336	               /tet:te-node-attributes
337	               /tet:connectivity-matrices
338	               /tet:label-restrictions/tet:label-restriction
339	               /tet:label-start/tet:te-label/tet:technology:
340	       +--:(eth)
341	          +--rw vlanid?   etht-types:vlanid
342	     augment /nw:networks/nw:network/nw:node/tet:te
343	               /tet:te-node-attributes
344	               /tet:connectivity-matrices
345	               /tet:label-restrictions/tet:label-restriction
346	               /tet:label-end/tet:te-label/tet:technology:
347	       +--:(eth)
348	          +--rw vlanid?   etht-types:vlanid
349	     augment /nw:networks/nw:network/nw:node/tet:te
350	               /tet:te-node-attributes
351	               /tet:connectivity-matrices
352	               /tet:label-restrictions/tet:label-restriction
353	               /tet:label-step/tet:technology:
354	       +--:(eth)
355	          +--rw eth-step?   uint16
356	     augment /nw:networks/nw:network/nw:node/tet:te
357	               /tet:te-node-attributes
358	               /tet:connectivity-matrices/tet:underlay
359	               /tet:primary-path/tet:path-element/tet:type
360	               /tet:label/tet:label-hop/tet:te-label
361	               /tet:technology:
362	       +--:(eth)
363	          +--rw vlanid?   etht-types:vlanid
364	     augment /nw:networks/nw:network/nw:node/tet:te
365	               /tet:te-node-attributes
366	               /tet:connectivity-matrices/tet:underlay
367	               /tet:backup-path/tet:path-element/tet:type
368	               /tet:label/tet:label-hop/tet:te-label
369	               /tet:technology:
370	       +--:(eth)
371	          +--rw vlanid?   etht-types:vlanid
372	     augment /nw:networks/nw:network/nw:node/tet:te
373	               /tet:te-node-attributes
374	               /tet:connectivity-matrices/tet:optimizations
375	               /tet:algorithm/tet:metric
376	               /tet:optimization-metric
377	               /tet:explicit-route-exclude-objects
378	               /tet:route-object-exclude-object/tet:type
379	               /tet:label/tet:label-hop/tet:te-label
380	               /tet:technology:
381	       +--:(eth)
382	          +--rw vlanid?   etht-types:vlanid
383	     augment /nw:networks/nw:network/nw:node/tet:te
384	               /tet:te-node-attributes
385	               /tet:connectivity-matrices/tet:optimizations
386	               /tet:algorithm/tet:metric
387	               /tet:optimization-metric
388	               /tet:explicit-route-include-objects
389	               /tet:route-object-include-object/tet:type
390	               /tet:label/tet:label-hop/tet:te-label
391	               /tet:technology:
392	       +--:(eth)
393	          +--rw vlanid?   etht-types:vlanid
394	     augment /nw:networks/nw:network/nw:node/tet:te
395	               /tet:te-node-attributes
396	               /tet:connectivity-matrices/tet:path-properties
397	               /tet:path-route-objects/tet:path-route-object
398	               /tet:type/tet:label/tet:label-hop/tet:te-label
399	               /tet:technology:
400	       +--:(eth)
401	          +--ro vlanid?   etht-types:vlanid
402	     augment /nw:networks/nw:network/nw:node/tet:te
403	               /tet:te-node-attributes
404	               /tet:connectivity-matrices
405	               /tet:connectivity-matrix/tet:from
406	               /tet:label-restrictions/tet:label-restriction:
407	       +--rw tag-type?   etht-types:eth-tag-type
408	       +--rw priority?   uint8
409	     augment /nw:networks/nw:network/nw:node/tet:te
410	               /tet:te-node-attributes
411	               /tet:connectivity-matrices
412	               /tet:connectivity-matrix/tet:from
413	               /tet:label-restrictions/tet:label-restriction
414	               /tet:label-start/tet:te-label/tet:technology:
415	       +--:(eth)
416	          +--rw vlanid?   etht-types:vlanid
417	     augment /nw:networks/nw:network/nw:node/tet:te
418	               /tet:te-node-attributes
419	               /tet:connectivity-matrices
420	               /tet:connectivity-matrix/tet:from
421	               /tet:label-restrictions/tet:label-restriction
422	               /tet:label-end/tet:te-label/tet:technology:
423	       +--:(eth)
424	          +--rw vlanid?   etht-types:vlanid
425	     augment /nw:networks/nw:network/nw:node/tet:te
426	               /tet:te-node-attributes
427	               /tet:connectivity-matrices
428	               /tet:connectivity-matrix/tet:from
429	               /tet:label-restrictions/tet:label-restriction
430	               /tet:label-step/tet:technology:
431	       +--:(eth)
432	          +--rw eth-step?   uint16
433	     augment /nw:networks/nw:network/nw:node/tet:te
434	               /tet:te-node-attributes
435	               /tet:connectivity-matrices
436	               /tet:connectivity-matrix/tet:to
437	               /tet:label-restrictions/tet:label-restriction:
438	       +--rw tag-type?   etht-types:eth-tag-type
439	       +--rw priority?   uint8
440	     augment /nw:networks/nw:network/nw:node/tet:te
441	               /tet:te-node-attributes
442	               /tet:connectivity-matrices
443	               /tet:connectivity-matrix/tet:to
444	               /tet:label-restrictions/tet:label-restriction
445	               /tet:label-start/tet:te-label/tet:technology:
446	       +--:(eth)
447	          +--rw vlanid?   etht-types:vlanid
448	     augment /nw:networks/nw:network/nw:node/tet:te
449	               /tet:te-node-attributes
450	               /tet:connectivity-matrices
451	               /tet:connectivity-matrix/tet:to
452	               /tet:label-restrictions/tet:label-restriction
453	               /tet:label-end/tet:te-label/tet:technology:
454	       +--:(eth)
455	          +--rw vlanid?   etht-types:vlanid
456	     augment /nw:networks/nw:network/nw:node/tet:te
457	               /tet:te-node-attributes
458	               /tet:connectivity-matrices
459	               /tet:connectivity-matrix/tet:to
460	               /tet:label-restrictions/tet:label-restriction
461	               /tet:label-step/tet:technology:
462	       +--:(eth)
463	          +--rw eth-step?   uint16
464	     augment /nw:networks/nw:network/nw:node/tet:te
465	               /tet:te-node-attributes
466	               /tet:connectivity-matrices
467	               /tet:connectivity-matrix/tet:underlay
468	               /tet:primary-path/tet:path-element/tet:type
469	               /tet:label/tet:label-hop/tet:te-label
470	               /tet:technology:
471	       +--:(eth)
472	          +--rw vlanid?   etht-types:vlanid
473	     augment /nw:networks/nw:network/nw:node/tet:te
474	               /tet:te-node-attributes
475	               /tet:connectivity-matrices
476	               /tet:connectivity-matrix/tet:underlay
477	               /tet:backup-path/tet:path-element/tet:type
478	               /tet:label/tet:label-hop/tet:te-label
479	               /tet:technology:

481	       +--:(eth)
482	          +--rw vlanid?   etht-types:vlanid
483	     augment /nw:networks/nw:network/nw:node/tet:te
484	               /tet:te-node-attributes
485	               /tet:connectivity-matrices
486	               /tet:connectivity-matrix/tet:optimizations
487	               /tet:algorithm/tet:metric
488	               /tet:optimization-metric
489	               /tet:explicit-route-exclude-objects
490	               /tet:route-object-exclude-object/tet:type
491	               /tet:label/tet:label-hop/tet:te-label
492	               /tet:technology:
493	       +--:(eth)
494	          +--rw vlanid?   etht-types:vlanid
495	     augment /nw:networks/nw:network/nw:node/tet:te
496	               /tet:te-node-attributes
497	               /tet:connectivity-matrices
498	               /tet:connectivity-matrix/tet:optimizations
499	               /tet:algorithm/tet:metric
500	               /tet:optimization-metric
501	               /tet:explicit-route-include-objects
502	               /tet:route-object-include-object/tet:type
503	               /tet:label/tet:label-hop/tet:te-label
504	               /tet:technology:
505	       +--:(eth)
506	          +--rw vlanid?   etht-types:vlanid
507	     augment /nw:networks/nw:network/nw:node/tet:te
508	               /tet:te-node-attributes
509	               /tet:connectivity-matrices
510	               /tet:connectivity-matrix/tet:path-properties
511	               /tet:path-route-objects/tet:path-route-object
512	               /tet:type/tet:label/tet:label-hop/tet:te-label
513	               /tet:technology:
514	       +--:(eth)
515	          +--ro vlanid?   etht-types:vlanid
516	     augment /nw:networks/nw:network/nw:node/tet:te
517	               /tet:information-source-entry
518	               /tet:connectivity-matrices
519	               /tet:label-restrictions/tet:label-restriction:
520	       +--ro tag-type?   etht-types:eth-tag-type
521	       +--ro priority?   uint8
522	     augment /nw:networks/nw:network/nw:node/tet:te
523	               /tet:information-source-entry
524	               /tet:connectivity-matrices
525	               /tet:label-restrictions/tet:label-restriction
526	               /tet:label-start/tet:te-label/tet:technology:
527	       +--:(eth)
528	          +--ro vlanid?   etht-types:vlanid

530	     augment /nw:networks/nw:network/nw:node/tet:te
531	               /tet:information-source-entry
532	               /tet:connectivity-matrices
533	               /tet:label-restrictions/tet:label-restriction
534	               /tet:label-end/tet:te-label/tet:technology:
535	       +--:(eth)
536	          +--ro vlanid?   etht-types:vlanid
537	     augment /nw:networks/nw:network/nw:node/tet:te
538	               /tet:information-source-entry
539	               /tet:connectivity-matrices
540	               /tet:label-restrictions/tet:label-restriction
541	               /tet:label-step/tet:technology:
542	       +--:(eth)
543	          +--ro eth-step?   uint16
544	     augment /nw:networks/nw:network/nw:node/tet:te
545	               /tet:information-source-entry
546	               /tet:connectivity-matrices/tet:underlay
547	               /tet:primary-path/tet:path-element/tet:type
548	               /tet:label/tet:label-hop/tet:te-label
549	               /tet:technology:
550	       +--:(eth)
551	          +--ro vlanid?   etht-types:vlanid
552	     augment /nw:networks/nw:network/nw:node/tet:te
553	               /tet:information-source-entry
554	               /tet:connectivity-matrices/tet:underlay
555	               /tet:backup-path/tet:path-element/tet:type
556	               /tet:label/tet:label-hop/tet:te-label
557	               /tet:technology:
558	       +--:(eth)
559	          +--ro vlanid?   etht-types:vlanid
560	     augment /nw:networks/nw:network/nw:node/tet:te
561	               /tet:information-source-entry
562	               /tet:connectivity-matrices/tet:optimizations
563	               /tet:algorithm/tet:metric
564	               /tet:optimization-metric
565	               /tet:explicit-route-exclude-objects
566	               /tet:route-object-exclude-object/tet:type
567	               /tet:label/tet:label-hop/tet:te-label
568	               /tet:technology:
569	       +--:(eth)
570	          +--ro vlanid?   etht-types:vlanid
571	     augment /nw:networks/nw:network/nw:node/tet:te
572	               /tet:information-source-entry
573	               /tet:connectivity-matrices/tet:optimizations
574	               /tet:algorithm/tet:metric
575	               /tet:optimization-metric
576	               /tet:explicit-route-include-objects
577	               /tet:route-object-include-object/tet:type
578	               /tet:label/tet:label-hop/tet:te-label
579	               /tet:technology:
580	       +--:(eth)
581	          +--ro vlanid?   etht-types:vlanid
582	     augment /nw:networks/nw:network/nw:node/tet:te
583	               /tet:information-source-entry
584	               /tet:connectivity-matrices/tet:path-properties
585	               /tet:path-route-objects/tet:path-route-object
586	               /tet:type/tet:label/tet:label-hop/tet:te-label
587	               /tet:technology:
588	       +--:(eth)
589	          +--ro vlanid?   etht-types:vlanid
590	     augment /nw:networks/nw:network/nw:node/tet:te
591	               /tet:information-source-entry
592	               /tet:connectivity-matrices
593	               /tet:connectivity-matrix/tet:from
594	               /tet:label-restrictions/tet:label-restriction:
595	       +--ro tag-type?   etht-types:eth-tag-type
596	       +--ro priority?   uint8
597	     augment /nw:networks/nw:network/nw:node/tet:te
598	               /tet:information-source-entry
599	               /tet:connectivity-matrices
600	               /tet:connectivity-matrix/tet:from
601	               /tet:label-restrictions/tet:label-restriction
602	               /tet:label-start/tet:te-label/tet:technology:
603	       +--:(eth)
604	          +--ro vlanid?   etht-types:vlanid
605	     augment /nw:networks/nw:network/nw:node/tet:te
606	               /tet:information-source-entry
607	               /tet:connectivity-matrices
608	               /tet:connectivity-matrix/tet:from
609	               /tet:label-restrictions/tet:label-restriction
610	               /tet:label-end/tet:te-label/tet:technology:
611	       +--:(eth)
612	          +--ro vlanid?   etht-types:vlanid
613	     augment /nw:networks/nw:network/nw:node/tet:te
614	               /tet:information-source-entry
615	               /tet:connectivity-matrices
616	               /tet:connectivity-matrix/tet:from
617	               /tet:label-restrictions/tet:label-restriction
618	               /tet:label-step/tet:technology:
619	       +--:(eth)
620	          +--ro eth-step?   uint16
621	     augment /nw:networks/nw:network/nw:node/tet:te
622	               /tet:information-source-entry
623	               /tet:connectivity-matrices
624	               /tet:connectivity-matrix/tet:to
625	               /tet:label-restrictions/tet:label-restriction:

627	       +--ro tag-type?   etht-types:eth-tag-type
628	       +--ro priority?   uint8
629	     augment /nw:networks/nw:network/nw:node/tet:te
630	               /tet:information-source-entry
631	               /tet:connectivity-matrices
632	               /tet:connectivity-matrix/tet:to
633	               /tet:label-restrictions/tet:label-restriction
634	               /tet:label-start/tet:te-label/tet:technology:
635	       +--:(eth)
636	          +--ro vlanid?   etht-types:vlanid
637	     augment /nw:networks/nw:network/nw:node/tet:te
638	               /tet:information-source-entry
639	               /tet:connectivity-matrices
640	               /tet:connectivity-matrix/tet:to
641	               /tet:label-restrictions/tet:label-restriction
642	               /tet:label-end/tet:te-label/tet:technology:
643	       +--:(eth)
644	          +--ro vlanid?   etht-types:vlanid
645	     augment /nw:networks/nw:network/nw:node/tet:te
646	               /tet:information-source-entry
647	               /tet:connectivity-matrices
648	               /tet:connectivity-matrix/tet:to
649	               /tet:label-restrictions/tet:label-restriction
650	               /tet:label-step/tet:technology:
651	       +--:(eth)
652	          +--ro eth-step?   uint16
653	     augment /nw:networks/nw:network/nw:node/tet:te
654	               /tet:information-source-entry
655	               /tet:connectivity-matrices
656	               /tet:connectivity-matrix/tet:underlay
657	               /tet:primary-path/tet:path-element/tet:type
658	               /tet:label/tet:label-hop/tet:te-label
659	               /tet:technology:
660	       +--:(eth)
661	          +--ro vlanid?   etht-types:vlanid
662	     augment /nw:networks/nw:network/nw:node/tet:te
663	               /tet:information-source-entry
664	               /tet:connectivity-matrices
665	               /tet:connectivity-matrix/tet:underlay
666	               /tet:backup-path/tet:path-element/tet:type
667	               /tet:label/tet:label-hop/tet:te-label
668	               /tet:technology:
669	       +--:(eth)
670	          +--ro vlanid?   etht-types:vlanid
671	     augment /nw:networks/nw:network/nw:node/tet:te
672	               /tet:information-source-entry
673	               /tet:connectivity-matrices
674	               /tet:connectivity-matrix/tet:optimizations
675	               /tet:algorithm/tet:metric
676	               /tet:optimization-metric
677	               /tet:explicit-route-exclude-objects
678	               /tet:route-object-exclude-object/tet:type
679	               /tet:label/tet:label-hop/tet:te-label
680	               /tet:technology:
681	       +--:(eth)
682	          +--ro vlanid?   etht-types:vlanid
683	     augment /nw:networks/nw:network/nw:node/tet:te
684	               /tet:information-source-entry
685	               /tet:connectivity-matrices
686	               /tet:connectivity-matrix/tet:optimizations
687	               /tet:algorithm/tet:metric
688	               /tet:optimization-metric
689	               /tet:explicit-route-include-objects
690	               /tet:route-object-include-object/tet:type
691	               /tet:label/tet:label-hop/tet:te-label
692	               /tet:technology:
693	       +--:(eth)
694	          +--ro vlanid?   etht-types:vlanid
695	     augment /nw:networks/nw:network/nw:node/tet:te
696	               /tet:information-source-entry
697	               /tet:connectivity-matrices
698	               /tet:connectivity-matrix/tet:path-properties
699	               /tet:path-route-objects/tet:path-route-object
700	               /tet:type/tet:label/tet:label-hop/tet:te-label
701	               /tet:technology:
702	       +--:(eth)
703	          +--ro vlanid?   etht-types:vlanid
704	     augment /nw:networks/nw:network/nw:node/tet:te
705	               /tet:tunnel-termination-point
706	               /tet:local-link-connectivities
707	               /tet:label-restrictions/tet:label-restriction:
708	       +--rw tag-type?   etht-types:eth-tag-type
709	       +--rw priority?   uint8
710	     augment /nw:networks/nw:network/nw:node/tet:te
711	               /tet:tunnel-termination-point
712	               /tet:local-link-connectivities
713	               /tet:label-restrictions/tet:label-restriction
714	               /tet:label-start/tet:te-label/tet:technology:
715	       +--:(eth)
716	          +--rw vlanid?   etht-types:vlanid
717	     augment /nw:networks/nw:network/nw:node/tet:te
718	               /tet:tunnel-termination-point
719	               /tet:local-link-connectivities
720	               /tet:label-restrictions/tet:label-restriction
721	               /tet:label-end/tet:te-label/tet:technology:
722	       +--:(eth)
723	          +--rw vlanid?   etht-types:vlanid
724	     augment /nw:networks/nw:network/nw:node/tet:te
725	               /tet:tunnel-termination-point
726	               /tet:local-link-connectivities
727	               /tet:label-restrictions/tet:label-restriction
728	               /tet:label-step/tet:technology:
729	       +--:(eth)
730	          +--rw eth-step?   uint16
731	     augment /nw:networks/nw:network/nw:node/tet:te
732	               /tet:tunnel-termination-point
733	               /tet:local-link-connectivities/tet:underlay
734	               /tet:primary-path/tet:path-element/tet:type
735	               /tet:label/tet:label-hop/tet:te-label
736	               /tet:technology:
737	       +--:(eth)
738	          +--rw vlanid?   etht-types:vlanid
739	     augment /nw:networks/nw:network/nw:node/tet:te
740	               /tet:tunnel-termination-point
741	               /tet:local-link-connectivities/tet:underlay
742	               /tet:backup-path/tet:path-element/tet:type
743	               /tet:label/tet:label-hop/tet:te-label
744	               /tet:technology:
745	       +--:(eth)
746	          +--rw vlanid?   etht-types:vlanid
747	     augment /nw:networks/nw:network/nw:node/tet:te
748	               /tet:tunnel-termination-point
749	               /tet:local-link-connectivities/tet:optimizations
750	               /tet:algorithm/tet:metric
751	               /tet:optimization-metric
752	               /tet:explicit-route-exclude-objects
753	               /tet:route-object-exclude-object/tet:type
754	               /tet:label/tet:label-hop/tet:te-label
755	               /tet:technology:
756	       +--:(eth)
757	          +--rw vlanid?   etht-types:vlanid
758	     augment /nw:networks/nw:network/nw:node/tet:te
759	               /tet:tunnel-termination-point
760	               /tet:local-link-connectivities/tet:optimizations
761	               /tet:algorithm/tet:metric
762	               /tet:optimization-metric
763	               /tet:explicit-route-include-objects
764	               /tet:route-object-include-object/tet:type
765	               /tet:label/tet:label-hop/tet:te-label
766	               /tet:technology:
767	       +--:(eth)
768	          +--rw vlanid?   etht-types:vlanid
769	     augment /nw:networks/nw:network/nw:node/tet:te
770	               /tet:tunnel-termination-point
771	               /tet:local-link-connectivities
772	               /tet:path-properties/tet:path-route-objects
773	               /tet:path-route-object/tet:type/tet:label
774	               /tet:label-hop/tet:te-label/tet:technology:
775	       +--:(eth)
776	          +--ro vlanid?   etht-types:vlanid
777	     augment /nw:networks/nw:network/nw:node/tet:te
778	               /tet:tunnel-termination-point
779	               /tet:local-link-connectivities
780	               /tet:local-link-connectivity
781	               /tet:label-restrictions/tet:label-restriction:
782	       +--rw tag-type?   etht-types:eth-tag-type
783	       +--rw priority?   uint8
784	     augment /nw:networks/nw:network/nw:node/tet:te
785	               /tet:tunnel-termination-point
786	               /tet:local-link-connectivities
787	               /tet:local-link-connectivity
788	               /tet:label-restrictions/tet:label-restriction
789	               /tet:label-start/tet:te-label/tet:technology:
790	       +--:(eth)
791	          +--rw vlanid?   etht-types:vlanid
792	     augment /nw:networks/nw:network/nw:node/tet:te
793	               /tet:tunnel-termination-point
794	               /tet:local-link-connectivities
795	               /tet:local-link-connectivity
796	               /tet:label-restrictions/tet:label-restriction
797	               /tet:label-end/tet:te-label/tet:technology:
798	       +--:(eth)
799	          +--rw vlanid?   etht-types:vlanid
800	     augment /nw:networks/nw:network/nw:node/tet:te
801	               /tet:tunnel-termination-point
802	               /tet:local-link-connectivities
803	               /tet:local-link-connectivity
804	               /tet:label-restrictions/tet:label-restriction
805	               /tet:label-step/tet:technology:
806	       +--:(eth)
807	          +--rw eth-step?   uint16
808	     augment /nw:networks/nw:network/nw:node/tet:te
809	               /tet:tunnel-termination-point
810	               /tet:local-link-connectivities
811	               /tet:local-link-connectivity/tet:underlay
812	               /tet:primary-path/tet:path-element/tet:type
813	               /tet:label/tet:label-hop/tet:te-label
814	               /tet:technology:
815	       +--:(eth)
816	          +--rw vlanid?   etht-types:vlanid
817	     augment /nw:networks/nw:network/nw:node/tet:te
818	               /tet:tunnel-termination-point
819	               /tet:local-link-connectivities
820	               /tet:local-link-connectivity/tet:underlay
821	               /tet:backup-path/tet:path-element/tet:type
822	               /tet:label/tet:label-hop/tet:te-label
823	               /tet:technology:
824	       +--:(eth)
825	          +--rw vlanid?   etht-types:vlanid
826	     augment /nw:networks/nw:network/nw:node/tet:te
827	               /tet:tunnel-termination-point
828	               /tet:local-link-connectivities
829	               /tet:local-link-connectivity/tet:optimizations
830	               /tet:algorithm/tet:metric
831	               /tet:optimization-metric
832	               /tet:explicit-route-exclude-objects
833	               /tet:route-object-exclude-object/tet:type
834	               /tet:label/tet:label-hop/tet:te-label
835	               /tet:technology:
836	       +--:(eth)
837	          +--rw vlanid?   etht-types:vlanid
838	     augment /nw:networks/nw:network/nw:node/tet:te
839	               /tet:tunnel-termination-point
840	               /tet:local-link-connectivities
841	               /tet:local-link-connectivity/tet:optimizations
842	               /tet:algorithm/tet:metric
843	               /tet:optimization-metric
844	               /tet:explicit-route-include-objects
845	               /tet:route-object-include-object/tet:type
846	               /tet:label/tet:label-hop/tet:te-label
847	               /tet:technology:
848	       +--:(eth)
849	          +--rw vlanid?   etht-types:vlanid
850	     augment /nw:networks/nw:network/nw:node/tet:te
851	               /tet:tunnel-termination-point
852	               /tet:local-link-connectivities
853	               /tet:local-link-connectivity/tet:path-properties
854	               /tet:path-route-objects/tet:path-route-object
855	               /tet:type/tet:label/tet:label-hop/tet:te-label
856	               /tet:technology:
857	       +--:(eth)
858	          +--ro vlanid?   etht-types:vlanid
859	     augment /nw:networks/nw:network/nt:link/tet:te
860	               /tet:te-link-attributes/tet:underlay
861	               /tet:primary-path/tet:path-element/tet:type
862	               /tet:label/tet:label-hop/tet:te-label
863	               /tet:technology:
864	       +--:(eth)
865	          +--rw vlanid?   etht-types:vlanid
866	     augment /nw:networks/nw:network/nt:link/tet:te
867	               /tet:te-link-attributes/tet:underlay
868	               /tet:backup-path/tet:path-element/tet:type
869	               /tet:label/tet:label-hop/tet:te-label
870	               /tet:technology:
871	       +--:(eth)
872	          +--rw vlanid?   etht-types:vlanid
873	     augment /nw:networks/nw:network/nt:link/tet:te
874	               /tet:te-link-attributes/tet:label-restrictions
875	               /tet:label-restriction:
876	       +--rw tag-type?   etht-types:eth-tag-type
877	       +--rw priority?   uint8
878	     augment /nw:networks/nw:network/nt:link/tet:te
879	               /tet:te-link-attributes/tet:label-restrictions
880	               /tet:label-restriction/tet:label-start
881	               /tet:te-label/tet:technology:
882	       +--:(eth)
883	          +--rw vlanid?   etht-types:vlanid
884	     augment /nw:networks/nw:network/nt:link/tet:te
885	               /tet:te-link-attributes/tet:label-restrictions
886	               /tet:label-restriction/tet:label-end
887	               /tet:te-label/tet:technology:
888	       +--:(eth)
889	          +--rw vlanid?   etht-types:vlanid
890	     augment /nw:networks/nw:network/nt:link/tet:te
891	               /tet:te-link-attributes/tet:label-restrictions
892	               /tet:label-restriction/tet:label-step
893	               /tet:technology:
894	       +--:(eth)
895	          +--rw eth-step?   uint16
896	     augment /nw:networks/nw:network/nt:link/tet:te
897	               /tet:information-source-entry
898	               /tet:label-restrictions/tet:label-restriction:
899	       +--ro tag-type?   etht-types:eth-tag-type
900	       +--ro priority?   uint8
901	     augment /nw:networks/nw:network/nt:link/tet:te
902	               /tet:information-source-entry
903	               /tet:label-restrictions/tet:label-restriction
904	               /tet:label-start/tet:te-label/tet:technology:
905	       +--:(eth)
906	          +--ro vlanid?   etht-types:vlanid
907	     augment /nw:networks/nw:network/nt:link/tet:te
908	               /tet:information-source-entry
909	               /tet:label-restrictions/tet:label-restriction
910	               /tet:label-end/tet:te-label/tet:technology:
911	       +--:(eth)
912	          +--ro vlanid?   etht-types:vlanid
913	     augment /nw:networks/nw:network/nt:link/tet:te
914	               /tet:information-source-entry
915	               /tet:label-restrictions/tet:label-restriction
916	               /tet:label-step/tet:technology:
917	       +--:(eth)
918	          +--ro eth-step?   uint16
919	     augment /nw:networks/tet:te/tet:templates
920	               /tet:link-template/tet:te-link-attributes
921	               /tet:underlay/tet:primary-path/tet:path-element
922	               /tet:type/tet:label/tet:label-hop/tet:te-label
923	               /tet:technology:
924	       +--:(eth)
925	          +--rw vlanid?   etht-types:vlanid
926	     augment /nw:networks/tet:te/tet:templates
927	               /tet:link-template/tet:te-link-attributes
928	               /tet:underlay/tet:backup-path/tet:path-element
929	               /tet:type/tet:label/tet:label-hop/tet:te-label
930	               /tet:technology:
931	       +--:(eth)
932	          +--rw vlanid?   etht-types:vlanid
933	     augment /nw:networks/tet:te/tet:templates
934	               /tet:link-template/tet:te-link-attributes
935	               /tet:label-restrictions/tet:label-restriction:
936	       +--rw tag-type?   etht-types:eth-tag-type
937	       +--rw priority?   uint8
938	     augment /nw:networks/tet:te/tet:templates
939	               /tet:link-template/tet:te-link-attributes
940	               /tet:label-restrictions/tet:label-restriction
941	               /tet:label-start/tet:te-label/tet:technology:
942	       +--:(eth)
943	          +--rw vlanid?   etht-types:vlanid
944	     augment /nw:networks/tet:te/tet:templates
945	               /tet:link-template/tet:te-link-attributes
946	               /tet:label-restrictions/tet:label-restriction
947	               /tet:label-end/tet:te-label/tet:technology:
948	       +--:(eth)
949	          +--rw vlanid?   etht-types:vlanid
950	     augment /nw:networks/tet:te/tet:templates
951	               /tet:link-template/tet:te-link-attributes
952	               /tet:label-restrictions/tet:label-restriction
953	               /tet:label-step/tet:technology:
954	       +--:(eth)
955	          +--rw eth-step?   uint16

957	4.  YANG Code for Topology Client Layer

959	4.1.  The ETH Topology YANG Code

961	 <CODE BEGINS> file "ietf-eth-te-topology@2019-11-18.yang"
962	 module ietf-eth-te-topology {

964	   namespace "urn:ietf:params:xml:ns:yang:ietf-eth-te-topology";

966	   prefix "ethtetopo";

968	   import ietf-network {
969	     prefix "nw";
970	   }

972	   import ietf-network-topology {
973	     prefix "nt";
974	   }

976	   import ietf-te-topology {
977	     prefix "tet";
978	   }

980	   import ietf-yang-types {
981	     prefix "yang";
982	   }

984	   import ietf-eth-tran-types {
985	     prefix "etht-types";
986	   }

988	   organization
989	     "Internet Engineering Task Force (IETF) CCAMP WG";
990	   contact
991	     "
992	       WG List: <mailto:ccamp@ietf.org>

994	       ID-draft editor:
995	         Haomian Zheng (zhenghaomian@huawei.com);
996	         Italo Busi (italo.busi@huawei.com);
997	         Aihua Guo (aihuaguo.ietf@gmail.com);
998	         Yunbin Xu (xuyunbin@caict.ac.cn);
999	         Yang Zhao (zhaoyangyjy@chinamobile.com);
1000	         Xufeng Liu (xufeng.liu.ietf@gmail.com);
1001	     ";

1003	   description
1004	     "This module defines a YANG data model for describing
1005	      layer-2 Ethernet transport topologies. The model fully
1006	      conforms to the Network Management Datastore
1007	      Architecture (NMDA).

1009	      Copyright (c) 2019 IETF Trust and the persons
1010	      identified as authors of the code.  All rights reserved.

1012	      Redistribution and use in source and binary forms, with or
1013	      without modification, is permitted pursuant to, and subject
1014	      to the license terms contained in, the Simplified BSD License
1015	      set forth in Section 4.c of the IETF Trust's Legal Provisions
1016	      Relating to IETF Documents
1017	      (https://trustee.ietf.org/license-info).
1018	      This version of this YANG module is part of RFC XXXX; see
1019	      the RFC itself for full legal notices.";

1021	   revision 2019-11-18 {
1022	     description
1023	       "Initial Revision";
1024	     reference
1025	       "RFC XXXX: A YANG Data Model for Client-layer Topology";
1026	     // RFC Ed.: replace XXXX with actual RFC number, update date
1027	     // information and remove this note
1028	   }

1030	   /*
1031	    * Groupings
1032	    */

1034	   grouping eth-tran-topology-type {
1035	     description
1036	       "Identifies the Ethernet Transport topology type";

1038	     container eth-tran-topology {
1039	       presence "indicates a topology type of
1040	                 Ethernet Transport Network.";
1041	       description "Eth transport topology type";
1042	     }
1043	   }

1045	   grouping ltp-bandwidth-profiles {
1046	     description
1047	       "A grouping which represents the bandwidth profile(s)
1048	       for the ETH LTP.";

1050	     choice direction {
1051	       description
1052	         "Whether the bandwidth profiles are symmetrical or
1053	          asymmetrical";
1054	       case symmetrical {
1055	         description
1056	           "The same bandwidth profile is used to describe the ingress
1057	            and the egress bandwidth profile.";

1059	         container ingress-egress-bandwidth-profile {
1060	           description
1061	             "The bandwith profile used in the ingress and egress
1062	              direction.";
1063	           uses etht-types:etht-bandwidth-profiles;
1064	         }
1065	       }
1066	       case asymmetrical {
1067	         description
1068	           "Different ingress and egress bandwidth profiles
1069	            can be specified.";
1070	         container ingress-bandwidth-profile {
1071	           description
1072	             "The bandwidth profile used in the ingress direction.";
1073	           uses etht-types:etht-bandwidth-profiles;
1074	         }
1075	         container egress-bandwidth-profile {
1076	           description
1077	             "The bandwidth profile used in the egress direction.";
1078	           uses etht-types:etht-bandwidth-profiles;
1079	         }
1080	       }
1081	     }
1082	   }

1084	   grouping eth-ltp-attributes {
1085	     description
1086	       "Ethernet transport link termination point attributes";

1088	     /*
1089	      * Open Issue: should we remove this attribute
1090	      * (duplicates with I2RS L2 attributes)?
1091	      */
1092	     leaf ltp-mac-address {
1093	       type yang:mac-address;
1094	       description "the MAC address of the LTP.";
1095	     }
1096	     /*
1097	      * Open Issue: should we remove this attribute
1098	      * (duplicates with I2RS L2 attributes)?
1099	      */

1101	     leaf port-vlan-id {
1102	       type etht-types:vlanid;
1103	       description "the port VLAN ID of the LTP.";
1104	     }
1105	     /*
1106	      * Open Issue: should we remove this attribute
1107	      * (duplicates with I2RS L2 attributes)?
1108	      */
1109	     leaf maximum-frame-size {
1110	       type uint16 {
1111	         range "64 .. 65535";
1112	       }
1113	       description
1114	         "Maximum frame size";
1115	     }
1116	       uses ltp-bandwidth-profiles;
1117	   }

1119	   grouping svc-vlan-classification {
1120	     description
1121	       "Grouping defining the capabilities for VLAN classification.";

1123	     leaf-list supported-tag-types {
1124	       type etht-types:eth-tag-classify;
1125	       description
1126	         "List of VLAN tag types that can be used for the VLAN
1127	          classification. In case VLAN classification is not
1128	          supported, the list is empty.";
1129	     }
1130	     leaf vlan-bundling {
1131	       type boolean;
1132	       description
1133	         "In case VLAN classification is supported, indicates whether
1134	         VLAN bundling classification is also supported.";
1135	     }
1136	     leaf vlan-range {
1137	       type etht-types:vid-range-type;
1138	       description
1139	         "In case VLAN classification is supported, indicates the
1140	         of available VLAN ID values.";
1141	     }
1142	   }

1144	   grouping svc-vlan-push {
1145	     description
1146	       "Grouping defining the capabilities for VLAN push or swap
1147	        operations.";

1149	     leaf-list supported-tag-types {
1150	       type etht-types:eth-tag-type;
1151	       description
1152	         "List of VLAN tag types that can be used to push or swap a
1153	          VLAN tag. In case VLAN push/swap is not supported, the list
1154	          is empty.";
1155	     }
1156	     leaf vlan-range {
1157	       type etht-types:vid-range-type;
1158	       description
1159	         "In case VLAN push/swap operation is supported, the range
1160	         of available VLAN ID values.";
1161	     }
1162	   }

1164	   grouping eth-ltp-svc-attributes {
1165	     description
1166	       "Ethernet link termination point (LTP) service attributes.";

1168	     container supported-classification {
1169	       description
1170	         "Service classification capability supported by the ETH LTP.";

1172	       leaf port-classification {
1173	         type boolean;
1174	         description
1175	           "Indicates that the ETH LTP support port-based service
1176	           classification.";
1177	       }
1178	       container vlan-classification {
1179	         description
1180	           "Service classification capabilities based on the VLAN
1181	            tag(s) supported by the ETH LTP.";

1183	         leaf vlan-tag-classification {
1184	           type boolean;
1185	           description
1186	             "Indicates that the ETH LTP supports VLAN service
1187	             classification.";
1188	         }
1189	         container outer-tag {
1190	           description
1191	             "Service classification capabilities based on the outer
1192	              VLAN tag, supported by the ETH LTP.";
1193	           uses svc-vlan-classification;
1194	         }
1195	         container second-tag {
1196	           description
1197	             "Service classification capabilities based on the second
1198	              VLAN tag, supported by the ETH LTP.";
1199	         /*
1200	          * Open issue: indicates that second-tag-classification
1201	          * can be True only if outer-tag-classification is also True.
1202	         */
1203	           leaf second-tag-classification {
1204	             type boolean;
1205	             description
1206	               "Indicates that the ETH LTP support  VLAN service
1207	                classification based on the second VLAN tag.";
1208	           }
1209	           uses svc-vlan-classification;
1210	         }
1211	       }
1212	     }

1214	     container supported-vlan-operations {
1215	       description
1216	         "Reports the VLAN operations supported by the ETH LTP.";

1218	       leaf asymmetrical-operations {
1219	         type boolean;
1220	         description
1221	           "Indicates whether the ETH LTP supports also asymmetrical
1222	            VLAN operations.It is assumed that symmetrical VLAN
1223	            operations are alwyas supported.";
1224	       }
1225	       leaf transparent-vlan-operations {
1226	         type boolean;
1227	         description
1228	           "Indicates that the ETH LTP supports transparent
1229	           operations.";
1230	       }
1231	       container vlan-pop {
1232	         description
1233	           "Indicates VLAN pop or swap operations capabilities.";

1235	         leaf vlan-pop-operations {
1236	           type boolean;
1237	           description
1238	             "Indicates that the ETH LTP supports VLAN pop or
1239	              swap operations.";
1240	         }
1241	         leaf max-pop-tags {
1242	           type uint8 {
1243	             range "1..2";
1244	           }
1245	           description
1246	             "Indicates the maximum number of tags that can be
1247	              popped/swapped.";
1248	         }
1249	       }
1250	       container vlan-push {
1251	         description
1252	           "Indicates VLAN push or swap operations capabilities.";

1254	         leaf vlan-push-operation {
1255	           type boolean;
1256	           description
1257	             "Indicates that the ETH LTP supports VLAN push or
1258	              swap operations.";
1259	         }
1260	         container outer-tag {
1261	           description
1262	             "Indicates the supported VLAN operation capabilities
1263	              on the outer VLAN tag.";
1264	           uses svc-vlan-push;
1265	         }
1266	         container second-tag {
1267	           description
1268	             "Indicates the supported VLAN operation capabilities
1269	              on the second VLAN tag.";
1270	           leaf push-second-tag {
1271	             type boolean;
1272	             description
1273	               "Indicates that the ETH LTP supports VLAN push or swap
1274	                operations for the second VLAN tag.";
1275	           }
1276	           uses svc-vlan-push;
1277	         }
1278	       }
1279	     }
1280	   }

1282	   /*
1283	    * Data nodes
1284	    */

1286	   augment "/nw:networks/nw:network/nw:network-types/tet:te-topology" {
1287	     description
1288	       "Augment network types to include ETH transport newtork";

1290	     uses eth-tran-topology-type;
1291	   }
1292	   augment "/nw:networks/nw:network/nw:node/nt:termination-point" {
1293	     when "../../nw:network-types/tet:te-topology/"
1294	       + "ethtetopo:eth-tran-topology" {
1295	       description
1296	         "Augment only for ETH transport network";
1297	     }
1298	     description
1299	       "Augment ETH LTP attributes";

1301	     uses eth-ltp-attributes;

1303	     container eth-svc {
1304	       presence "client-facing LTP.";
1305	       description
1306	         "ETH LTP Service attributes.";

1308	       leaf client-facing {
1309	         type boolean;
1310	         default "false";
1311	         description
1312	           "Indicates whether this LTP is a client-facing LTP.";
1313	       }
1314	       uses eth-ltp-svc-attributes;
1315	     }
1316	   }

1318	   /*
1319	    * Augment TE bandwidth
1320	    */

1322	   /* Augment maximum LSP bandwidth of link terminationpoint (LTP) */
1323	   augment "/nw:networks/nw:network/nw:node/nt:termination-point/"
1324	         + "tet:te/"
1325	         + "tet:interface-switching-capability/tet:max-lsp-bandwidth/"
1326	         + "tet:te-bandwidth/tet:technology" {
1327	     when "../../../../../../nw:network-types/tet:te-topology/"
1328	        + "ethtetopo:eth-tran-topology" {
1329	       description "Ethernet TE bandwidth";
1330	     }
1331	     description "Ethernet bandwidth.";
1332	     case eth {
1333	       uses etht-types:eth-bandwidth;
1334	     }
1335	   }
1336	   /* Augment bandwidth path constraints of connectivity-matrices */
1337	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1338	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1339	         + "tet:path-constraints/tet:te-bandwidth/tet:technology" {

1341	     when "../../../../../../nw:network-types/tet:te-topology/"
1342	        + "ethtetopo:eth-tran-topology" {
1343	       description "Ethernet TE bandwidth";
1344	     }
1345	     description "Ethernet bandwidth.";
1346	     case eth {
1347	       uses etht-types:eth-bandwidth;
1348	     }
1349	   }

1351	   /* Augment bandwidth path constraints of connectivity-matrix */
1352	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1353	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1354	         + "tet:connectivity-matrix/"
1355	         + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
1356	     when "../../../../../../../nw:network-types/tet:te-topology/"
1357	        + "ethtetopo:eth-tran-topology" {
1358	       description "Ethernet TE bandwidth";
1359	     }
1360	     description "Ethernet bandwidth.";
1361	     case eth {
1362	       uses etht-types:eth-bandwidth;
1363	     }
1364	   }

1366	   /* Augment bandwidth path constraints of connectivity-matrices
1367	    * information-source */
1368	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1369	         + "tet:information-source-entry/tet:connectivity-matrices/"
1370	         + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
1371	     when "../../../../../../nw:network-types/tet:te-topology/"
1372	        + "ethtetopo:eth-tran-topology" {
1373	       description "Ethernet TE bandwidth";
1374	     }
1375	     description "Ethernet bandwidth.";
1376	     case eth {
1377	       uses etht-types:eth-bandwidth;
1378	     }
1379	   }

1381	   /* Augment bandwidth path constraints of connectivity-matrix
1382	    * information-source */
1383	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1384	         + "tet:information-source-entry/tet:connectivity-matrices/"
1385	         + "tet:connectivity-matrix/"
1386	         + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
1387	     when "../../../../../../../nw:network-types/tet:te-topology/"
1388	        + "ethtetopo:eth-tran-topology" {

1390	       description "Ethernet TE bandwidth";
1391	     }
1392	     description "Ethernet bandwidth.";
1393	     case eth {
1394	       uses etht-types:eth-bandwidth;
1395	     }
1396	   }

1398	   /* Augment client bandwidth of tunnel termination point (TTP) */
1399	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1400	         + "tet:tunnel-termination-point/"
1401	         + "tet:client-layer-adaptation/tet:switching-capability/"
1402	         + "tet:te-bandwidth/tet:technology" {
1403	     when "../../../../../../nw:network-types/tet:te-topology/"
1404	        + "ethtetopo:eth-tran-topology" {
1405	       description "Ethernet TE bandwidth";
1406	     }
1407	     description "Ethernet bandwidth.";
1408	     case eth {
1409	       uses etht-types:eth-bandwidth;
1410	     }
1411	   }

1413	   /* Augment bandwidth path constraints of local-link-connectivities */
1414	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1415	         + "tet:tunnel-termination-point/"
1416	         + "tet:local-link-connectivities/tet:path-constraints/"
1417	         + "tet:te-bandwidth/tet:technology" {
1418	     when "../../../../../../nw:network-types/tet:te-topology/"
1419	        + "ethtetopo:eth-tran-topology" {
1420	       description "Ethernet TE bandwidth";
1421	     }
1422	     description "Ethernet bandwidth.";
1423	     case eth {
1424	       uses etht-types:eth-bandwidth;
1425	     }
1426	   }

1428	   /* Augment bandwidth path constraints of local-link-connectivity */
1429	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1430	         + "tet:tunnel-termination-point/"
1431	         + "tet:local-link-connectivities/"
1432	         + "tet:local-link-connectivity/tet:path-constraints/"
1433	         + "tet:te-bandwidth/tet:technology" {
1434	     when "../../../../../../../nw:network-types/tet:te-topology/"
1435	        + "ethtetopo:eth-tran-topology" {
1436	       description "Ethernet TE bandwidth";
1437	     }
1438	     description "Ethernet bandwidth.";
1439	     case eth {
1440	       uses etht-types:eth-bandwidth;
1441	     }
1442	   }

1444	   /* Augment maximum LSP bandwidth of TE link */
1445	   augment "/nw:networks/nw:network/nt:link/tet:te/"
1446	         + "tet:te-link-attributes/"
1447	         + "tet:interface-switching-capability/tet:max-lsp-bandwidth/"
1448	         + "tet:te-bandwidth/tet:technology" {
1449	     when "../../../../../../nw:network-types/tet:te-topology/"
1450	        + "ethtetopo:eth-tran-topology" {
1451	       description "Ethernet TE bandwidth";
1452	     }
1453	     description "Ethernet bandwidth.";
1454	     case eth {
1455	       uses etht-types:eth-bandwidth;
1456	     }
1457	   }

1459	   /* Augment maximum bandwidth of TE link */
1460	   augment "/nw:networks/nw:network/nt:link/tet:te/"
1461	         + "tet:te-link-attributes/"
1462	         + "tet:max-link-bandwidth/"
1463	         + "tet:te-bandwidth/tet:technology" {
1464	     when "../../../../../nw:network-types/tet:te-topology/"
1465	        + "ethtetopo:eth-tran-topology" {
1466	       description "Ethernet TE bandwidth";
1467	     }
1468	     description "Ethernet bandwidth.";
1469	     case eth {
1470	       uses etht-types:eth-bandwidth;
1471	     }
1472	   }

1474	   /* Augment maximum reservable bandwidth of TE link */
1475	   augment "/nw:networks/nw:network/nt:link/tet:te/"
1476	         + "tet:te-link-attributes/"
1477	         + "tet:max-resv-link-bandwidth/"
1478	         + "tet:te-bandwidth/tet:technology" {
1479	     when "../../../../../nw:network-types/tet:te-topology/"
1480	        + "ethtetopo:eth-tran-topology" {
1481	       description "Ethernet TE bandwidth";
1482	     }
1483	     description "Ethernet bandwidth.";
1484	     case eth {
1485	       uses etht-types:eth-bandwidth;

1487	     }
1488	   }

1490	   /* Augment unreserved bandwidth of TE Link */
1491	   augment "/nw:networks/nw:network/nt:link/tet:te/"
1492	         + "tet:te-link-attributes/"
1493	         + "tet:unreserved-bandwidth/"
1494	         + "tet:te-bandwidth/tet:technology" {
1495	     when "../../../../../nw:network-types/tet:te-topology/"
1496	        + "ethtetopo:eth-tran-topology" {
1497	       description "Ethernet TE bandwidth";
1498	     }
1499	     description "Ethernet bandwidth.";
1500	     case eth {
1501	       uses etht-types:eth-bandwidth;
1502	     }
1503	   }
1504	   /* Augment maximum LSP bandwidth of TE link information-source */
1505	   augment "/nw:networks/nw:network/nt:link/tet:te/"
1506	         + "tet:information-source-entry/"
1507	         + "tet:interface-switching-capability/"
1508	         + "tet:max-lsp-bandwidth/"
1509	         + "tet:te-bandwidth/tet:technology" {
1510	     when "../../../../../../nw:network-types/tet:te-topology/"
1511	        + "ethtetopo:eth-tran-topology" {
1512	       description "Ethernet TE bandwidth";
1513	     }
1514	     description "Ethernet bandwidth.";
1515	     case eth {
1516	       uses etht-types:eth-bandwidth;
1517	     }
1518	   }

1520	   /* Augment maximum bandwidth of TE link information-source */
1521	   augment "/nw:networks/nw:network/nt:link/tet:te/"
1522	         + "tet:information-source-entry/"
1523	         + "tet:max-link-bandwidth/"
1524	         + "tet:te-bandwidth/tet:technology" {
1525	     when "../../../../../nw:network-types/tet:te-topology/"
1526	        + "ethtetopo:eth-tran-topology" {
1527	       description "Ethernet TE bandwidth";
1528	     }
1529	     description "Ethernet bandwidth.";
1530	     case eth {
1531	       uses etht-types:eth-bandwidth;
1532	     }
1533	   }
1534	   /* Augment maximum reservable bandwidth of TE link
1535	    * information-source */
1536	   augment "/nw:networks/nw:network/nt:link/tet:te/"
1537	         + "tet:information-source-entry/"
1538	         + "tet:max-resv-link-bandwidth/"
1539	         + "tet:te-bandwidth/tet:technology" {
1540	     when "../../../../../nw:network-types/tet:te-topology/"
1541	        + "ethtetopo:eth-tran-topology" {
1542	       description "Ethernet TE bandwidth";
1543	     }
1544	     description "Ethernet bandwidth.";
1545	     case eth {
1546	       uses etht-types:eth-bandwidth;
1547	     }
1548	   }

1550	   /* Augment unreserved bandwidth of TE link information-source */
1551	   augment "/nw:networks/nw:network/nt:link/tet:te/"
1552	         + "tet:information-source-entry/"
1553	         + "tet:unreserved-bandwidth/"
1554	         + "tet:te-bandwidth/tet:technology" {
1555	     when "../../../../../nw:network-types/tet:te-topology/"
1556	        + "ethtetopo:eth-tran-topology" {
1557	       description "Ethernet TE bandwidth";
1558	     }
1559	     description "Ethernet bandwidth.";
1560	     case eth {
1561	       uses etht-types:eth-bandwidth;
1562	     }
1563	   }

1565	   /* Augment maximum LSP bandwidth of TE link template */
1566	   augment "/nw:networks/tet:te/tet:templates/"
1567	         + "tet:link-template/tet:te-link-attributes/"
1568	         + "tet:interface-switching-capability/"
1569	         + "tet:max-lsp-bandwidth/"
1570	         + "tet:te-bandwidth/tet:technology" {
1571	 /*
1572	     when "../../../../../../nw:network-types/tet:te-topology/"
1573	        + "ethtetopo:eth-tran-topology" {
1574	       description "Ethernet TE bandwidth";
1575	     }
1576	 */
1577	     description "Ethernet bandwidth.";
1578	     case eth {
1579	       uses etht-types:eth-bandwidth;
1580	     }
1581	   }
1582	   /* Augment maximum bandwidth of TE link template */
1583	   augment "/nw:networks/tet:te/tet:templates/"
1584	         + "tet:link-template/tet:te-link-attributes/"
1585	         + "tet:max-link-bandwidth/"
1586	         + "tet:te-bandwidth/tet:technology" {
1587	 /*
1588	     when "../../../../../nw:network-types/tet:te-topology/"
1589	         + "ethtetopo:eth-tran-topology" {
1590	       description "Ethernet TE bandwidth";
1591	     }
1592	 */
1593	     description "Ethernet bandwidth.";
1594	     case eth {
1595	       uses etht-types:eth-bandwidth;
1596	     }
1597	   }

1599	   /* Augment maximum reservable bandwidth of TE link template */
1600	   augment "/nw:networks/tet:te/tet:templates/"
1601	         + "tet:link-template/tet:te-link-attributes/"
1602	         + "tet:max-resv-link-bandwidth/"
1603	         + "tet:te-bandwidth/tet:technology" {
1604	 /*
1605	     when "../../../../../nw:network-types/tet:te-topology/"
1606	         + "ethtetopo:eth-tran-topology" {
1607	       description "Ethernet TE bandwidth";
1608	     }
1609	 */
1610	     description "Ethernet bandwidth.";
1611	     case eth {
1612	       uses etht-types:eth-bandwidth;
1613	     }
1614	   }

1616	   /* Augment unreserved bandwidth of TE link template */
1617	   augment "/nw:networks/tet:te/tet:templates/"
1618	         + "tet:link-template/tet:te-link-attributes/"
1619	         + "tet:unreserved-bandwidth/"
1620	         + "tet:te-bandwidth/tet:technology" {
1621	 /*
1622	     when "../../../../../../nw:network-types/tet:te-topology/"
1623	         + "ethtetopo:eth-tran-topology" {
1624	       description "Ethernet TE bandwidth";
1625	     }
1626	 */
1627	     description "Ethernet bandwidth.";
1628	     case eth {
1629	       uses etht-types:eth-bandwidth;

1631	     }
1632	   }

1634	   /*
1635	    * Augment TE label.
1636	    */

1638	   /* Augment label restrictions of connectivity-matrices */
1639	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1640	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1641	         + "tet:label-restrictions/tet:label-restriction" {
1642	     when "../../../../../../nw:network-types/tet:te-topology/"
1643	        + "ethtetopo:eth-tran-topology" {
1644	       description "Ethernet TE label";
1645	     }
1646	     description "Ethernet label restriction.";
1647	     uses etht-types:eth-label-restriction;
1648	   }

1650	   /* Augment label restrictions start of connectivity-matrices */
1651	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1652	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1653	         + "tet:label-restrictions/tet:label-restriction/"
1654	         + "tet:label-start/tet:te-label/tet:technology" {
1655	     when "../../../../../../../../nw:network-types/tet:te-topology/"
1656	        + "ethtetopo:eth-tran-topology" {
1657	       description "Ethernet TE label";
1658	     }
1659	     description "Ethernet label.";
1660	     case eth {
1661	       uses etht-types:eth-label;
1662	     }
1663	   }

1665	   /* Augment label restrictions end of connectivity-matrices */
1666	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1667	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1668	         + "tet:label-restrictions/tet:label-restriction/tet:label-end/"
1669	         + "tet:te-label/tet:technology" {
1670	     when "../../../../../../../../nw:network-types/tet:te-topology/"
1671	        + "ethtetopo:eth-tran-topology" {
1672	       description "Ethernet TE label";
1673	     }
1674	     description "Ethernet label.";
1675	     case eth {
1676	       uses etht-types:eth-label;
1677	     }
1678	   }
1679	   /* Augment label restrictions step of connectivity-matrices */
1680	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1681	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1682	         + "tet:label-restrictions/tet:label-restriction/"
1683	         + "tet:label-step/tet:technology" {
1684	     when "../../../../../../../nw:network-types/tet:te-topology/"
1685	        + "ethtetopo:eth-tran-topology" {
1686	       description "Ethernet TE label";
1687	     }
1688	     description "Ethernet label.";
1689	     case eth {
1690	       uses etht-types:eth-label-step;
1691	     }
1692	   }

1694	   /* Augment label hop of underlay primary path of
1695	    * connectivity-matrices */
1696	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1697	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1698	         + "tet:underlay/tet:primary-path/tet:path-element/"
1699	         + "tet:type/tet:label/tet:label-hop/"
1700	         + "tet:te-label/tet:technology" {
1701	     when "../../../../../../../../../"
1702	        + "nw:network-types/tet:te-topology/"
1703	        + "ethtetopo:eth-tran-topology" {
1704	       description "Ethernet TE label";
1705	     }
1706	     description "Ethernet label.";
1707	     case eth {
1708	       uses etht-types:eth-label;
1709	     }
1710	   }
1711	   /* Augment label hop of underlay backup path of
1712	    * connectivity-matrices */
1713	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1714	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1715	         + "tet:underlay/tet:backup-path/tet:path-element/"
1716	         + "tet:type/tet:label/tet:label-hop/"
1717	         + "tet:te-label/tet:technology" {
1718	     when "../../../../../../../../../"
1719	        + "nw:network-types/tet:te-topology/"
1720	        + "ethtetopo:eth-tran-topology" {
1721	       description "Ethernet TE label";
1722	     }
1723	     description "Ethernet label.";
1724	     case eth {
1725	       uses etht-types:eth-label;
1726	     }

1728	   }

1730	   /* Augment label hop of route-exclude of connectivity-matrices */
1731	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1732	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1733	         + "tet:optimizations/tet:algorithm/tet:metric/"
1734	         + "tet:optimization-metric/"
1735	         + "tet:explicit-route-exclude-objects/"
1736	         + "tet:route-object-exclude-object/"
1737	         + "tet:type/tet:label/tet:label-hop/"
1738	         + "tet:te-label/tet:technology" {
1739	     when "../../../../../../../../../../"
1740	        + "nw:network-types/tet:te-topology/"
1741	        + "ethtetopo:eth-tran-topology" {
1742	       description "Ethernet TE label";
1743	     }
1744	     description "Ethernet label.";
1745	     case eth {
1746	       uses etht-types:eth-label;
1747	     }
1748	   }

1750	   /* Augment label hop of route-include of connectivity-matrices */
1751	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1752	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1753	         + "tet:optimizations/tet:algorithm/tet:metric/"
1754	         + "tet:optimization-metric/"
1755	         + "tet:explicit-route-include-objects/"
1756	         + "tet:route-object-include-object/"
1757	         + "tet:type/tet:label/tet:label-hop/"
1758	         + "tet:te-label/tet:technology" {
1759	     when "../../../../../../../../../../"
1760	        + "nw:network-types/tet:te-topology/"
1761	        + "ethtetopo:eth-tran-topology" {
1762	       description "Ethernet TE label";
1763	     }
1764	     description "Ethernet label.";
1765	     case eth {
1766	       uses etht-types:eth-label;
1767	     }
1768	   }

1770	   /* Augment label hop of path-route of connectivity-matrices */
1771	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1772	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1773	         + "tet:path-properties/tet:path-route-objects/"
1774	         + "tet:path-route-object/tet:type/tet:label/tet:label-hop/"
1775	         + "tet:te-label/tet:technology"{

1777	     when "../../../../../../../../../"
1778	        + "nw:network-types/tet:te-topology/"
1779	        + "ethtetopo:eth-tran-topology" {
1780	       description "Ethernet TE label";
1781	     }
1782	     description "Ethernet label.";
1783	     case eth {
1784	       uses etht-types:eth-label;
1785	     }
1786	   }

1788	   /* Augment ingress label restrictions of connectivity-matrix */
1789	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1790	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1791	         + "tet:connectivity-matrix/tet:from/"
1792	         + "tet:label-restrictions/tet:label-restriction" {
1793	     when "../../../../../../../../nw:network-types/tet:te-topology/"
1794	        + "ethtetopo:eth-tran-topology" {
1795	       description "Ethernet TE label";
1796	     }
1797	     description "Ethernet label.";
1798	     uses etht-types:eth-label-restriction;
1799	   }

1801	   /* Augment ingress label restrictions start of
1802	    * connectivity-matrix */
1803	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1804	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1805	         + "tet:connectivity-matrix/tet:from/"
1806	         + "tet:label-restrictions/tet:label-restriction/"
1807	         + "tet:label-start/tet:te-label/tet:technology" {
1808	     when "../../../../../../../../../../"
1809	        + "nw:network-types/tet:te-topology/"
1810	        + "ethtetopo:eth-tran-topology" {
1811	       description "Ethernet TE label";
1812	     }
1813	     description "Ethernet label.";
1814	     case eth {
1815	       uses etht-types:eth-label;
1816	     }
1817	   }

1819	   /* Augment ingress label restrictions end of connectivity-matrix */
1820	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1821	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1822	         + "tet:connectivity-matrix/tet:from/"
1823	         + "tet:label-restrictions/tet:label-restriction/tet:label-end/"
1824	         + "tet:te-label/tet:technology" {

1826	     when "../../../../../../../../../../"
1827	        + "nw:network-types/tet:te-topology/"
1828	        + "ethtetopo:eth-tran-topology" {
1829	       description "Ethernet TE label";
1830	     }
1831	     description "Ethernet label.";
1832	     case eth {
1833	       uses etht-types:eth-label;
1834	     }
1835	   }

1837	   /* Augment ingress label restrictions step of connectivity-matrix */
1838	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1839	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1840	         + "tet:connectivity-matrix/tet:from/"
1841	         + "tet:label-restrictions/tet:label-restriction/"
1842	         + "tet:label-step/tet:technology" {
1843	     when "../../../../../../../../../"
1844	        + "nw:network-types/tet:te-topology/"
1845	        + "ethtetopo:eth-tran-topology" {
1846	       description "Ethernet TE label";
1847	     }
1848	     description "Ethernet label.";
1849	     case eth {
1850	       uses etht-types:eth-label-step;
1851	     }
1852	   }

1854	   /* Augment egress label restrictions of connectivity-matrix */
1855	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1856	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1857	         + "tet:connectivity-matrix/tet:to/"
1858	         + "tet:label-restrictions/tet:label-restriction" {
1859	     when "../../../../../../../../nw:network-types/tet:te-topology/"
1860	        + "ethtetopo:eth-tran-topology" {
1861	       description "Ethernet TE label";
1862	     }
1863	     description "Ethernet label.";
1864	     uses etht-types:eth-label-restriction;
1865	   }

1867	   /* Augment egress label restrictions start of
1868	    * connectivity-matrix */
1869	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1870	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1871	         + "tet:connectivity-matrix/tet:to/"
1872	         + "tet:label-restrictions/tet:label-restriction/"
1873	         + "tet:label-start/tet:te-label/tet:technology" {

1875	     when "../../../../../../../../../../"
1876	        + "nw:network-types/tet:te-topology/"
1877	        + "ethtetopo:eth-tran-topology" {
1878	       description "Ethernet TE label";
1879	     }
1880	     description "Ethernet label.";
1881	     case eth {
1882	       uses etht-types:eth-label;
1883	     }
1884	   }

1886	   /* Augment egress label restrictions end of connectivity-matrix */
1887	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1888	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1889	         + "tet:connectivity-matrix/tet:to/"
1890	         + "tet:label-restrictions/tet:label-restriction/tet:label-end/"
1891	         + "tet:te-label/tet:technology" {
1892	     when "../../../../../../../../../../"
1893	        + "nw:network-types/tet:te-topology/"
1894	        + "ethtetopo:eth-tran-topology" {
1895	       description "Ethernet TE label";
1896	     }
1897	     description "Ethernet label.";
1898	     case eth {
1899	       uses etht-types:eth-label;
1900	     }
1901	   }

1903	   /* Augment egress label restrictions step of connectivity-matrix */
1904	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1905	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1906	         + "tet:connectivity-matrix/tet:to/"
1907	         + "tet:label-restrictions/tet:label-restriction/"
1908	         + "tet:label-step/tet:technology" {
1909	     when "../../../../../../../../../"
1910	        + "nw:network-types/tet:te-topology/"
1911	        + "ethtetopo:eth-tran-topology" {
1912	       description "Ethernet TE label";
1913	     }
1914	     description "Ethernet label.";
1915	     case eth {
1916	       uses etht-types:eth-label-step;
1917	     }
1918	   }

1920	 /* Augment label hop of underlay primary path of connectivity-matrix */
1921	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1922	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1923	         + "tet:connectivity-matrix/"
1924	         + "tet:underlay/tet:primary-path/tet:path-element/"
1925	         + "tet:type/tet:label/tet:label-hop/"
1926	         + "tet:te-label/tet:technology" {
1927	     when "../../../../../../../../../../"
1928	        + "nw:network-types/tet:te-topology/"
1929	        + "ethtetopo:eth-tran-topology" {
1930	       description "Ethernet TE label";
1931	     }
1932	     description "Ethernet label.";
1933	     case eth {
1934	       uses etht-types:eth-label;
1935	     }
1936	   }

1938	 /* Augment label hop of underlay backup path of connectivity-matrix */
1939	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1940	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1941	         + "tet:connectivity-matrix/"
1942	         + "tet:underlay/tet:backup-path/tet:path-element/"
1943	         + "tet:type/tet:label/tet:label-hop/"
1944	         + "tet:te-label/tet:technology" {
1945	     when "../../../../../../../../../../"
1946	        + "nw:network-types/tet:te-topology/"
1947	        + "ethtetopo:eth-tran-topology" {
1948	       description "Ethernet TE label";
1949	     }
1950	     description "Ethernet label.";
1951	     case eth {
1952	       uses etht-types:eth-label;
1953	     }
1954	   }

1956	   /* Augment label hop of route-exclude of connectivity-matrix */
1957	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1958	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1959	         + "tet:connectivity-matrix/tet:optimizations/"
1960	         + "tet:algorithm/tet:metric/tet:optimization-metric/"
1961	         + "tet:explicit-route-exclude-objects/"
1962	         + "tet:route-object-exclude-object/tet:type/"
1963	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
1964	     when "../../../../../../../../../../../"
1965	        + "nw:network-types/tet:te-topology/"
1966	        + "ethtetopo:eth-tran-topology" {
1967	       description "Ethernet TE label";
1968	     }
1969	     description "Ethernet label.";
1970	     case eth {
1971	       uses etht-types:eth-label;
1972	     }
1973	   }

1975	   /* Augment label hop of route-include of connectivity-matrix */
1976	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1977	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1978	         + "tet:connectivity-matrix/tet:optimizations/"
1979	         + "tet:algorithm/tet:metric/tet:optimization-metric/"
1980	         + "tet:explicit-route-include-objects/"
1981	         + "tet:route-object-include-object/tet:type/"
1982	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
1983	     when "../../../../../../../../../../../"
1984	        + "nw:network-types/tet:te-topology/"
1985	        + "ethtetopo:eth-tran-topology" {
1986	       description "Ethernet TE label";
1987	     }
1988	     description "Ethernet label.";
1989	     case eth {
1990	       uses etht-types:eth-label;
1991	     }
1992	   }

1994	   /* Augment label hop of path-route of connectivity-matrix */
1995	   augment "/nw:networks/nw:network/nw:node/tet:te/"
1996	         + "tet:te-node-attributes/tet:connectivity-matrices/"
1997	         + "tet:connectivity-matrix/"
1998	         + "tet:path-properties/tet:path-route-objects/"
1999	         + "tet:path-route-object/tet:type/"
2000	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2001	     when "../../../../../../../../../../"
2002	        + "nw:network-types/tet:te-topology/"
2003	        + "ethtetopo:eth-tran-topology" {
2004	       description "Ethernet TE label";
2005	     }
2006	     description "Ethernet label.";
2007	     case eth {
2008	       uses etht-types:eth-label;
2009	     }
2010	   }

2012	   /* Augment label restrictions of connectivity-matrices
2013	    * information-source */
2014	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2015	         + "tet:information-source-entry/"
2016	         + "tet:connectivity-matrices/tet:label-restrictions/"
2017	         + "tet:label-restriction" {
2018	     when "../../../../../../nw:network-types/tet:te-topology/"
2019	        + "ethtetopo:eth-tran-topology" {
2020	       description "Ethernet TE label";
2021	     }
2022	     description "Ethernet label.";
2023	     uses etht-types:eth-label-restriction;
2024	   }

2026	   /* Augment label restrictions start of connectivity-matrices
2027	    * information-source */
2028	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2029	         + "tet:information-source-entry/"
2030	         + "tet:connectivity-matrices/tet:label-restrictions/"
2031	         + "tet:label-restriction/"
2032	         + "tet:label-start/tet:te-label/tet:technology" {
2033	     when "../../../../../../../../"
2034	        + "nw:network-types/tet:te-topology/"
2035	        + "ethtetopo:eth-tran-topology" {
2036	       description "Ethernet TE label";
2037	     }
2038	     description "Ethernet label.";
2039	     case eth {
2040	       uses etht-types:eth-label;
2041	     }
2042	   }

2044	   /* Augment label restrictions end of connectivity-matrices
2045	    * information-source */
2046	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2047	         + "tet:information-source-entry/"
2048	         + "tet:connectivity-matrices/tet:label-restrictions/"
2049	         + "tet:label-restriction/"
2050	         + "tet:label-end/tet:te-label/tet:technology" {
2051	     when "../../../../../../../../"
2052	        + "nw:network-types/tet:te-topology/"
2053	        + "ethtetopo:eth-tran-topology" {
2054	       description "Ethernet TE label";
2055	     }
2056	     description "Ethernet label.";
2057	     case eth {
2058	       uses etht-types:eth-label;
2059	     }
2060	   }

2062	   /* Augment label restrictions step of connectivity-matrices
2063	    * information-source */
2064	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2065	         + "tet:information-source-entry/"
2066	         + "tet:connectivity-matrices/tet:label-restrictions/"
2067	         + "tet:label-restriction/"
2068	         + "tet:label-step/tet:technology" {
2069	     when "../../../../../../../"
2070	        + "nw:network-types/tet:te-topology/"
2071	        + "ethtetopo:eth-tran-topology" {
2072	       description "Ethernet TE label";
2073	     }
2074	     description "Ethernet label.";
2075	     case eth {
2076	       uses etht-types:eth-label-step;
2077	     }
2078	   }

2080	   /* Augment label hop of underlay primary path of
2081	    * connectivity-matrices information-source */
2082	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2083	         + "tet:information-source-entry/tet:connectivity-matrices/"
2084	         + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2085	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2086	     when "../../../../../../../../../"
2087	        + "nw:network-types/tet:te-topology/"
2088	        + "ethtetopo:eth-tran-topology" {
2089	       description "Ethernet TE label";
2090	     }
2091	     description "Ethernet label.";
2092	     case eth {
2093	       uses etht-types:eth-label;
2094	     }
2095	   }

2097	   /* Augment label hop of underlay backup path of
2098	    * connectivity-matrices information-source */
2099	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2100	         + "tet:information-source-entry/tet:connectivity-matrices/"
2101	         + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2102	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2103	     when "../../../../../../../../../"
2104	        + "nw:network-types/tet:te-topology/"
2105	        + "ethtetopo:eth-tran-topology" {
2106	       description "Ethernet TE label";
2107	     }
2108	     description "Ethernet label.";
2109	     case eth {
2110	       uses etht-types:eth-label;
2111	     }
2112	   }

2114	   /* Augment label hop of route-exclude of
2115	    * connectivity-matrices information-source */
2116	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2117	         + "tet:information-source-entry/tet:connectivity-matrices/"
2118	         + "tet:optimizations/tet:algorithm/tet:metric/"
2119	         + "tet:optimization-metric/"
2120	         + "tet:explicit-route-exclude-objects/"
2121	         + "tet:route-object-exclude-object/tet:type/"
2122	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2123	     when "../../../../../../../../../../"
2124	        + "nw:network-types/tet:te-topology/"
2125	        + "ethtetopo:eth-tran-topology" {
2126	       description "Ethernet TE label";
2127	     }
2128	     description "Ethernet label.";
2129	     case eth {
2130	       uses etht-types:eth-label;
2131	     }
2132	   }

2134	   /* Augment label hop of route-include of
2135	    * connectivity-matrices information-source */
2136	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2137	         + "tet:information-source-entry/tet:connectivity-matrices/"
2138	         + "tet:optimizations/tet:algorithm/tet:metric/"
2139	         + "tet:optimization-metric/"
2140	         + "tet:explicit-route-include-objects/"
2141	         + "tet:route-object-include-object/tet:type/"
2142	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2143	     when "../../../../../../../../../../"
2144	        + "nw:network-types/tet:te-topology/"
2145	        + "ethtetopo:eth-tran-topology" {
2146	       description "Ethernet TE label";
2147	     }
2148	     description "Ethernet label.";
2149	     case eth {
2150	       uses etht-types:eth-label;
2151	     }
2152	   }

2154	   /* Augment label hop of path-route of
2155	    * connectivity-matrices information-source */
2156	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2157	         + "tet:information-source-entry/tet:connectivity-matrices/"
2158	         + "tet:path-properties/tet:path-route-objects/"
2159	         + "tet:path-route-object/tet:type/"
2160	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2161	     when "../../../../../../../../../"
2162	        + "nw:network-types/tet:te-topology/"
2163	        + "ethtetopo:eth-tran-topology" {
2164	       description "Ethernet TE label";
2165	     }
2166	     description "Ethernet label.";
2167	     case eth {
2168	       uses etht-types:eth-label;
2169	     }
2170	   }

2172	   /* Augment ingress label restrictions of
2173	    * connectivity-matrix information-source */
2174	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2175	         + "tet:information-source-entry/tet:connectivity-matrices/"
2176	         + "tet:connectivity-matrix/"
2177	         + "tet:from/tet:label-restrictions/tet:label-restriction" {
2178	     when "../../../../../../../../nw:network-types/tet:te-topology/"
2179	        + "ethtetopo:eth-tran-topology" {
2180	       description "Ethernet TE label";
2181	     }
2182	     description "Ethernet label.";
2183	     uses etht-types:eth-label-restriction;
2184	   }

2186	   /* Augment ingress label restrictions start of
2187	    * connectivity-matrix information-source */
2188	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2189	         + "tet:information-source-entry/tet:connectivity-matrices/"
2190	         + "tet:connectivity-matrix/"
2191	         + "tet:from/tet:label-restrictions/tet:label-restriction/"
2192	         + "tet:label-start/tet:te-label/tet:technology" {
2193	     when "../../../../../../../../../../"
2194	        + "nw:network-types/tet:te-topology/"
2195	        + "ethtetopo:eth-tran-topology" {
2196	       description "Ethernet TE label";
2197	     }
2198	     description "Ethernet label.";
2199	     case eth {
2200	       uses etht-types:eth-label;
2201	     }
2202	   }

2204	   /* Augment ingress label restrictions end of
2205	    * connectivity-matrix information-source */
2206	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2207	         + "tet:information-source-entry/tet:connectivity-matrices/"
2208	         + "tet:connectivity-matrix/"
2209	         + "tet:from/tet:label-restrictions/tet:label-restriction/"
2210	         + "tet:label-end/tet:te-label/tet:technology" {

2212	     when "../../../../../../../../../../"
2213	        + "nw:network-types/tet:te-topology/"
2214	        + "ethtetopo:eth-tran-topology" {
2215	       description "Ethernet TE label";
2216	     }
2217	     description "Ethernet label.";
2218	     case eth {
2219	       uses etht-types:eth-label;
2220	     }
2221	   }

2223	   /* Augment ingress label restrictions step of
2224	    * connectivity-matrix information-source */
2225	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2226	         + "tet:information-source-entry/tet:connectivity-matrices/"
2227	         + "tet:connectivity-matrix/"
2228	         + "tet:from/tet:label-restrictions/tet:label-restriction/"
2229	         + "tet:label-step/tet:technology" {
2230	     when "../../../../../../../../../"
2231	        + "nw:network-types/tet:te-topology/"
2232	        + "ethtetopo:eth-tran-topology" {
2233	       description "Ethernet TE label";
2234	     }
2235	     description "Ethernet label.";
2236	     case eth {
2237	       uses etht-types:eth-label-step;
2238	     }
2239	   }

2241	   /* Augment egress label restrictions of
2242	    * connectivity-matrix information-source */
2243	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2244	         + "tet:information-source-entry/tet:connectivity-matrices/"
2245	         + "tet:connectivity-matrix/"
2246	         + "tet:to/tet:label-restrictions/tet:label-restriction" {
2247	     when "../../../../../../../../nw:network-types/tet:te-topology/"
2248	        + "ethtetopo:eth-tran-topology" {
2249	       description "Ethernet TE label";
2250	     }
2251	     description "Ethernet label.";
2252	     uses etht-types:eth-label-restriction;
2253	   }

2255	   /* Augment egress label restrictions start of
2256	    * connectivity-matrix information-source */
2257	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2258	         + "tet:information-source-entry/tet:connectivity-matrices/"
2259	         + "tet:connectivity-matrix/"
2260	         + "tet:to/tet:label-restrictions/tet:label-restriction/"
2261	         + "tet:label-start/tet:te-label/tet:technology" {
2262	     when "../../../../../../../../../../"
2263	        + "nw:network-types/tet:te-topology/"
2264	        + "ethtetopo:eth-tran-topology" {
2265	       description "Ethernet TE label";
2266	     }
2267	     description "Ethernet label.";
2268	     case eth {
2269	       uses etht-types:eth-label;
2270	     }
2271	   }

2273	   /* Augment egress label restrictions end of
2274	    * connectivity-matrix information-source */
2275	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2276	         + "tet:information-source-entry/tet:connectivity-matrices/"
2277	         + "tet:connectivity-matrix/"
2278	         + "tet:to/tet:label-restrictions/tet:label-restriction/"
2279	         + "tet:label-end/tet:te-label/tet:technology" {
2280	     when "../../../../../../../../../../"
2281	        + "nw:network-types/tet:te-topology/"
2282	        + "ethtetopo:eth-tran-topology" {
2283	       description "Ethernet TE label";
2284	     }
2285	     description "Ethernet label.";
2286	     case eth {
2287	       uses etht-types:eth-label;
2288	     }
2289	   }

2291	   /* Augment egress label restrictions step of
2292	    * connectivity-matrix information-source */
2293	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2294	         + "tet:information-source-entry/tet:connectivity-matrices/"
2295	         + "tet:connectivity-matrix/"
2296	         + "tet:to/tet:label-restrictions/tet:label-restriction/"
2297	         + "tet:label-step/tet:technology" {
2298	     when "../../../../../../../../../"
2299	        + "nw:network-types/tet:te-topology/"
2300	        + "ethtetopo:eth-tran-topology" {
2301	       description "Ethernet TE label";
2302	     }
2303	     description "Ethernet label.";
2304	     case eth {
2305	       uses etht-types:eth-label-step;
2306	     }
2307	   }
2308	   /* Augment label hop of underlay primary path of
2309	    * connectivity-matrix information-source */
2310	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2311	         + "tet:information-source-entry/tet:connectivity-matrices/"
2312	         + "tet:connectivity-matrix/"
2313	         + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2314	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2315	     when "../../../../../../../../../../"
2316	        + "nw:network-types/tet:te-topology/"
2317	        + "ethtetopo:eth-tran-topology" {
2318	       description "Ethernet TE label";
2319	     }
2320	     description "Ethernet label.";
2321	     case eth {
2322	       uses etht-types:eth-label;
2323	     }
2324	   }

2326	   /* Augment label hop of underlay backup path of
2327	    * connectivity-matrix information-source */
2328	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2329	         + "tet:information-source-entry/tet:connectivity-matrices/"
2330	         + "tet:connectivity-matrix/"
2331	         + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2332	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2333	     when "../../../../../../../../../../"
2334	        + "nw:network-types/tet:te-topology/"
2335	        + "ethtetopo:eth-tran-topology" {
2336	       description "Ethernet TE label";
2337	     }
2338	     description "Ethernet label.";
2339	     case eth {
2340	       uses etht-types:eth-label;
2341	     }
2342	   }

2344	   /* Augment label hop of route-exclude of
2345	    * connectivity-matrix information-source */
2346	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2347	         + "tet:information-source-entry/tet:connectivity-matrices/"
2348	         + "tet:connectivity-matrix/"
2349	         + "tet:optimizations/tet:algorithm/tet:metric/"
2350	         + "tet:optimization-metric/"
2351	         + "tet:explicit-route-exclude-objects/"
2352	         + "tet:route-object-exclude-object/tet:type/"
2353	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2354	     when "../../../../../../../../../../../"
2355	        + "nw:network-types/tet:te-topology/"
2356	        + "ethtetopo:eth-tran-topology" {
2357	       description "Ethernet TE label";
2358	     }
2359	     description "Ethernet label.";
2360	     case eth {
2361	       uses etht-types:eth-label;
2362	     }
2363	   }

2365	   /* Augment label hop of route-include of
2366	    * connectivity-matrix information-source */
2367	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2368	         + "tet:information-source-entry/tet:connectivity-matrices/"
2369	         + "tet:connectivity-matrix/"
2370	         + "tet:optimizations/tet:algorithm/tet:metric/"
2371	         + "tet:optimization-metric/"
2372	         + "tet:explicit-route-include-objects/"
2373	         + "tet:route-object-include-object/tet:type/"
2374	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2375	     when "../../../../../../../../../../../"
2376	        + "nw:network-types/tet:te-topology/"
2377	        + "ethtetopo:eth-tran-topology" {
2378	       description "Ethernet TE label";
2379	     }
2380	     description "Ethernet label.";
2381	     case eth {
2382	       uses etht-types:eth-label;
2383	     }
2384	   }

2386	   /* Augment label hop of path-route of
2387	    * connectivity-matrix information-source */
2388	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2389	         + "tet:information-source-entry/tet:connectivity-matrices/"
2390	         + "tet:connectivity-matrix/"
2391	         + "tet:path-properties/tet:path-route-objects/"
2392	         + "tet:path-route-object/tet:type/"
2393	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2394	     when "../../../../../../../../../../"
2395	        + "nw:network-types/tet:te-topology/"
2396	        + "ethtetopo:eth-tran-topology" {
2397	       description "Ethernet TE label";
2398	     }
2399	     description "Ethernet label.";
2400	     case eth {
2401	       uses etht-types:eth-label;
2402	     }
2403	   }
2404	   /* Augment label restrictions of local-link-connectivities */
2405	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2406	         + "tet:tunnel-termination-point/"
2407	         + "tet:local-link-connectivities/"
2408	         + "tet:label-restrictions/tet:label-restriction" {
2409	     when "../../../../../../nw:network-types/tet:te-topology/"
2410	        + "ethtetopo:eth-tran-topology" {
2411	       description "Ethernet TE label";
2412	     }
2413	     description "Ethernet label.";
2414	     uses etht-types:eth-label-restriction;
2415	   }

2417	   /* Augment label restrictions start of local-link-connectivities */
2418	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2419	         + "tet:tunnel-termination-point/"
2420	         + "tet:local-link-connectivities/"
2421	         + "tet:label-restrictions/tet:label-restriction/"
2422	         + "tet:label-start/tet:te-label/tet:technology" {
2423	     when "../../../../../../../../nw:network-types/tet:te-topology/"
2424	        + "ethtetopo:eth-tran-topology" {
2425	       description "Ethernet TE label";
2426	     }
2427	     description "Ethernet label.";
2428	     case eth {
2429	       uses etht-types:eth-label;
2430	     }
2431	   }

2433	   /* Augment label restrictions end of local-link-connectivities */
2434	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2435	         + "tet:tunnel-termination-point/"
2436	         + "tet:local-link-connectivities/"
2437	         + "tet:label-restrictions/tet:label-restriction/"
2438	         + "tet:label-end/tet:te-label/tet:technology"{
2439	     when "../../../../../../../../nw:network-types/tet:te-topology/"
2440	        + "ethtetopo:eth-tran-topology" {
2441	       description "Ethernet TE label";
2442	     }
2443	     description "Ethernet label.";
2444	     case eth {
2445	       uses etht-types:eth-label;
2446	     }
2447	   }

2449	   /* Augment label restrictions step of local-link-connectivities */
2450	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2451	         + "tet:tunnel-termination-point/"
2452	         + "tet:local-link-connectivities/"
2453	         + "tet:label-restrictions/tet:label-restriction/"
2454	         + "tet:label-step/tet:technology"{
2455	     when "../../../../../../../nw:network-types/tet:te-topology/"
2456	        + "ethtetopo:eth-tran-topology" {
2457	       description "Ethernet TE label";
2458	     }
2459	     description "Ethernet label.";
2460	     case eth {
2461	       uses etht-types:eth-label-step;
2462	     }
2463	   }

2465	   /* Augment label hop of underlay primary path of
2466	    * local-link-connectivities */
2467	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2468	         + "tet:tunnel-termination-point/"
2469	         + "tet:local-link-connectivities/"
2470	         + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2471	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2472	     when "../../../../../../../../../"
2473	        + "nw:network-types/tet:te-topology/"
2474	        + "ethtetopo:eth-tran-topology" {
2475	       description "Ethernet TE label";
2476	     }
2477	     description "Ethernet label.";
2478	     case eth {
2479	       uses etht-types:eth-label;
2480	     }
2481	   }

2483	   /* Augment label hop of underlay backup path of
2484	    * local-link-connectivities */
2485	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2486	         + "tet:tunnel-termination-point/"
2487	         + "tet:local-link-connectivities/"
2488	         + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2489	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2490	     when "../../../../../../../../../"
2491	        + "nw:network-types/tet:te-topology/"
2492	        + "ethtetopo:eth-tran-topology" {
2493	       description "Ethernet TE label";
2494	     }
2495	     description "Ethernet label.";
2496	     case eth {
2497	       uses etht-types:eth-label;
2498	     }
2499	   }
2500	   /* Augment label hop of route-exclude of
2501	    * local-link-connectivities */
2502	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2503	         + "tet:tunnel-termination-point/"
2504	         + "tet:local-link-connectivities/"
2505	         + "tet:optimizations/tet:algorithm/tet:metric/"
2506	         + "tet:optimization-metric/"
2507	         + "tet:explicit-route-exclude-objects/"
2508	         + "tet:route-object-exclude-object/tet:type/"
2509	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2510	     when "../../../../../../../../../../"
2511	        + "nw:network-types/tet:te-topology/"
2512	        + "ethtetopo:eth-tran-topology" {
2513	       description "Ethernet TE label";
2514	     }
2515	     description "Ethernet label.";
2516	     case eth {
2517	       uses etht-types:eth-label;
2518	     }
2519	   }

2521	   /* Augment label hop of route-include of
2522	    * local-link-connectivities */
2523	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2524	         + "tet:tunnel-termination-point/"
2525	         + "tet:local-link-connectivities/"
2526	         + "tet:optimizations/tet:algorithm/tet:metric/"
2527	         + "tet:optimization-metric/"
2528	         + "tet:explicit-route-include-objects/"
2529	         + "tet:route-object-include-object/tet:type/"
2530	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2531	     when "../../../../../../../../../../"
2532	        + "nw:network-types/tet:te-topology/"
2533	        + "ethtetopo:eth-tran-topology" {
2534	       description "Ethernet TE label";
2535	     }
2536	     description "Ethernet label.";
2537	     case eth {
2538	       uses etht-types:eth-label;
2539	     }
2540	   }

2542	   /* Augment label hop of path-route of local-link-connectivities */
2543	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2544	         + "tet:tunnel-termination-point/"
2545	         + "tet:local-link-connectivities/"
2546	         + "tet:path-properties/tet:path-route-objects/"
2547	         + "tet:path-route-object/tet:type/"
2548	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2549	     when "../../../../../../../../../"
2550	        + "nw:network-types/tet:te-topology/"
2551	        + "ethtetopo:eth-tran-topology" {
2552	       description "Ethernet TE label";
2553	     }
2554	     description "Ethernet label.";
2555	     case eth {
2556	       uses etht-types:eth-label;
2557	     }
2558	   }

2560	   /* Augment label restrictions of local-link-connectivity  */
2561	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2562	         + "tet:tunnel-termination-point/"
2563	         + "tet:local-link-connectivities/"
2564	         + "tet:local-link-connectivity/"
2565	         + "tet:label-restrictions/tet:label-restriction" {
2566	     when "../../../../../../../nw:network-types/tet:te-topology/"
2567	        + "ethtetopo:eth-tran-topology" {
2568	       description "Ethernet TE label";
2569	     }
2570	     description "Ethernet label.";
2571	     uses etht-types:eth-label-restriction;
2572	   }

2574	   /* Augment label restrictions start of local-link-connectivity */
2575	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2576	         + "tet:tunnel-termination-point/"
2577	         + "tet:local-link-connectivities/"
2578	         + "tet:local-link-connectivity/"
2579	         + "tet:label-restrictions/tet:label-restriction/"
2580	         + "tet:label-start/tet:te-label/tet:technology" {
2581	     when "../../../../../../../../../"
2582	        + "nw:network-types/tet:te-topology/"
2583	        + "ethtetopo:eth-tran-topology" {
2584	       description "Ethernet TE label";
2585	     }
2586	     description "Ethernet label.";
2587	     case eth {
2588	       uses etht-types:eth-label;
2589	     }
2590	   }

2592	   /* Augment label restrictions end of local-link-connectivity */
2593	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2594	         + "tet:tunnel-termination-point/"
2595	         + "tet:local-link-connectivities/"
2596	         + "tet:local-link-connectivity/"
2597	         + "tet:label-restrictions/tet:label-restriction/"
2598	         + "tet:label-end/tet:te-label/tet:technology" {
2599	     when "../../../../../../../../../"
2600	        + "nw:network-types/tet:te-topology/"
2601	        + "ethtetopo:eth-tran-topology" {
2602	       description "Ethernet TE label";
2603	     }
2604	     description "Ethernet label.";
2605	     case eth {
2606	       uses etht-types:eth-label;
2607	     }
2608	   }

2610	   /* Augment label restrictions step of local-link-connectivity  */
2611	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2612	         + "tet:tunnel-termination-point/"
2613	         + "tet:local-link-connectivities/"
2614	         + "tet:local-link-connectivity/"
2615	         + "tet:label-restrictions/tet:label-restriction/"
2616	         + "tet:label-step/tet:technology" {
2617	     when "../../../../../../../../"
2618	        + "nw:network-types/tet:te-topology/"
2619	        + "ethtetopo:eth-tran-topology" {
2620	       description "Ethernet TE label";
2621	     }
2622	     description "Ethernet label.";
2623	     case eth {
2624	       uses etht-types:eth-label-step;
2625	     }
2626	   }

2628	   /* Augment label hop of underlay primary path of
2629	    * local-link-connectivity */
2630	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2631	         + "tet:tunnel-termination-point/"
2632	         + "tet:local-link-connectivities/"
2633	         + "tet:local-link-connectivity/"
2634	         + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2635	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2636	     when "../../../../../../../../../../"
2637	        + "nw:network-types/tet:te-topology/"
2638	        + "ethtetopo:eth-tran-topology" {
2639	       description "Ethernet TE label";
2640	     }
2641	     description "Ethernet label.";
2642	     case eth {
2643	       uses etht-types:eth-label;

2645	     }
2646	   }

2648	   /* Augment label hop of underlay backup path of
2649	    * local-link-connectivity (LLC) */
2650	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2651	         + "tet:tunnel-termination-point/"
2652	         + "tet:local-link-connectivities/"
2653	         + "tet:local-link-connectivity/"
2654	         + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2655	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2656	     when "../../../../../../../../../../"
2657	        + "nw:network-types/tet:te-topology/"
2658	        + "ethtetopo:eth-tran-topology" {
2659	       description "Ethernet TE label";
2660	     }
2661	     description "Ethernet label.";
2662	     case eth {
2663	       uses etht-types:eth-label;
2664	     }
2665	   }

2667	   /* Augment label hop of route-exclude of
2668	    * local-link-connectivity (LLC) */
2669	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2670	         + "tet:tunnel-termination-point/"
2671	         + "tet:local-link-connectivities/"
2672	         + "tet:local-link-connectivity/"
2673	         + "tet:optimizations/tet:algorithm/tet:metric/"
2674	         + "tet:optimization-metric/"
2675	         + "tet:explicit-route-exclude-objects/"
2676	         + "tet:route-object-exclude-object/tet:type/"
2677	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2678	     when "../../../../../../../../../../../"
2679	        + "nw:network-types/tet:te-topology/"
2680	        + "ethtetopo:eth-tran-topology" {
2681	       description "Ethernet TE label";
2682	     }
2683	     description "Ethernet label.";
2684	     case eth {
2685	       uses etht-types:eth-label;
2686	     }
2687	   }

2689	   /* Augment label hop of route-include of
2690	    * local-link-connectivity (LLC) */
2691	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2692	         + "tet:tunnel-termination-point/"
2693	         + "tet:local-link-connectivities/"
2694	         + "tet:local-link-connectivity/"
2695	         + "tet:optimizations/tet:algorithm/tet:metric/"
2696	         + "tet:optimization-metric/"
2697	         + "tet:explicit-route-include-objects/"
2698	         + "tet:route-object-include-object/tet:type/"
2699	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2700	     when "../../../../../../../../../../../"
2701	        + "nw:network-types/tet:te-topology/"
2702	        + "ethtetopo:eth-tran-topology" {
2703	       description "Ethernet TE label";
2704	     }
2705	     description "Ethernet label.";
2706	     case eth {
2707	       uses etht-types:eth-label;
2708	     }
2709	   }

2711	   /* Augment label hop of path-route of
2712	    * local-link-connectivity (LLC) */
2713	   augment "/nw:networks/nw:network/nw:node/tet:te/"
2714	         + "tet:tunnel-termination-point/"
2715	         + "tet:local-link-connectivities/"
2716	         + "tet:local-link-connectivity/"
2717	         + "tet:path-properties/tet:path-route-objects/"
2718	         + "tet:path-route-object/tet:type/"
2719	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2720	     when "../../../../../../../../../../"
2721	        + "nw:network-types/tet:te-topology/"
2722	        + "ethtetopo:eth-tran-topology" {
2723	       description "Ethernet TE label";
2724	     }
2725	     description "Ethernet label.";
2726	     case eth {
2727	       uses etht-types:eth-label;
2728	     }
2729	   }

2731	   /* Augment label hop of underlay primary path of TE link */
2732	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2733	         + "tet:te-link-attributes/"
2734	         + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2735	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2736	     when "../../../../../../../../"
2737	        + "nw:network-types/tet:te-topology/"
2738	        + "ethtetopo:eth-tran-topology" {
2739	       description "Ethernet TE label";
2740	     }
2741	     description "Ethernet label.";
2742	     case eth {
2743	       uses etht-types:eth-label;
2744	     }
2745	   }

2747	   /* Augment label hop of underlay backup path of TE link */
2748	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2749	         + "tet:te-link-attributes/"
2750	         + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2751	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2752	     when "../../../../../../../../"
2753	        + "nw:network-types/tet:te-topology/"
2754	        + "ethtetopo:eth-tran-topology" {
2755	       description "Ethernet TE label";
2756	     }
2757	     description "Ethernet label.";
2758	     case eth {
2759	       uses etht-types:eth-label;
2760	     }
2761	   }

2763	   /* Augment label restrictions of TE link */
2764	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2765	         + "tet:te-link-attributes/"
2766	         + "tet:label-restrictions/tet:label-restriction" {
2767	     when "../../../../../nw:network-types/tet:te-topology/"
2768	        + "ethtetopo:eth-tran-topology" {
2769	       description "Ethernet TE label";
2770	     }
2771	     description "Ethernet label.";
2772	     uses etht-types:eth-label-restriction;
2773	   }

2775	   /* Augment label restrictions start of TE link */
2776	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2777	         + "tet:te-link-attributes/"
2778	         + "tet:label-restrictions/tet:label-restriction/"
2779	         + "tet:label-start/tet:te-label/tet:technology" {
2780	     when "../../../../../../../nw:network-types/tet:te-topology/"
2781	        + "ethtetopo:eth-tran-topology" {
2782	       description "Ethernet TE label";
2783	     }
2784	     description "Ethernet label.";
2785	     case eth {
2786	       uses etht-types:eth-label;
2787	     }
2788	   }
2789	   /* Augment label restrictions end of TE link */
2790	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2791	         + "tet:te-link-attributes/"
2792	         + "tet:label-restrictions/tet:label-restriction/"
2793	         + "tet:label-end/tet:te-label/tet:technology" {
2794	     when "../../../../../../../nw:network-types/tet:te-topology/"
2795	        + "ethtetopo:eth-tran-topology" {
2796	       description "Ethernet TE label";
2797	     }
2798	     description "Ethernet label.";
2799	     case eth {
2800	       uses etht-types:eth-label;
2801	     }
2802	   }

2804	   /* Augment label restrictions step of TE link */
2805	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2806	         + "tet:te-link-attributes/"
2807	         + "tet:label-restrictions/tet:label-restriction/"
2808	         + "tet:label-step/tet:technology" {
2809	     when "../../../../../../nw:network-types/tet:te-topology/"
2810	        + "ethtetopo:eth-tran-topology" {
2811	       description "Ethernet TE label";
2812	     }
2813	     description "Ethernet label.";
2814	     case eth {
2815	       uses etht-types:eth-label-step;
2816	     }
2817	   }

2819	   /* Augment label restrictions of TE link information-source */
2820	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2821	         + "tet:information-source-entry/"
2822	         + "tet:label-restrictions/tet:label-restriction" {
2823	     when "../../../../../nw:network-types/tet:te-topology/"
2824	        + "ethtetopo:eth-tran-topology" {
2825	       description "Ethernet TE label";
2826	     }
2827	     description "Ethernet label.";
2828	     uses etht-types:eth-label-restriction;
2829	   }

2831	   /* Augment label restrictions start of TE link information-source */
2832	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2833	         + "tet:information-source-entry/"
2834	         + "tet:label-restrictions/tet:label-restriction/"
2835	         + "tet:label-start/tet:te-label/tet:technology" {
2836	     when "../../../../../../../nw:network-types/tet:te-topology/"
2837	        + "ethtetopo:eth-tran-topology" {
2838	       description "Ethernet TE label";
2839	     }
2840	     description "Ethernet label.";
2841	     case eth {
2842	       uses etht-types:eth-label;
2843	     }
2844	   }
2845	   /* Augment label restrictions end of TE link information-source */
2846	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2847	         + "tet:information-source-entry/"
2848	         + "tet:label-restrictions/tet:label-restriction/"
2849	         + "tet:label-end/tet:te-label/tet:technology" {
2850	     when "../../../../../../../nw:network-types/tet:te-topology/"
2851	        + "ethtetopo:eth-tran-topology" {
2852	       description "Ethernet TE label";
2853	     }
2854	     description "Ethernet label.";
2855	     case eth {
2856	       uses etht-types:eth-label;
2857	     }
2858	   }

2860	   /* Augment label restrictions step of TE link information-source */
2861	   augment "/nw:networks/nw:network/nt:link/tet:te/"
2862	         + "tet:information-source-entry/"
2863	         + "tet:label-restrictions/tet:label-restriction/"
2864	         + "tet:label-step/tet:technology" {
2865	     when "../../../../../../nw:network-types/tet:te-topology/"
2866	        + "ethtetopo:eth-tran-topology" {
2867	       description "Ethernet TE label";
2868	     }
2869	     description "Ethernet label.";
2870	     case eth {
2871	       uses etht-types:eth-label-step;
2872	     }
2873	   }

2875	   /* Augment label hop of underlay primary path of TE link template */
2876	   augment "/nw:networks/tet:te/tet:templates/"
2877	         + "tet:link-template/tet:te-link-attributes/"
2878	         + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2879	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2880	 /*
2881	     when "../../../../../../../../../../"
2882	        + "nw:network-types/tet:te-topology/"
2883	        + "ethtetopo:eth-tran-topology" {
2884	       description "Ethernet TE label";

2886	     }
2887	 */
2888	     description "Ethernet label.";
2889	     case eth {
2890	       uses etht-types:eth-label;
2891	     }
2892	   }

2894	   /* Augment label hop of underlay backup path of TE link template */
2895	   augment "/nw:networks/tet:te/tet:templates/"
2896	         + "tet:link-template/tet:te-link-attributes/"
2897	         + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2898	         + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2899	 /*
2900	     when "../../../../../../../../../../nw:network-types/"
2901	         + "tet:te-topology/ethtetopo:eth-tran-topology" {
2902	       description "Ethernet TE label";
2903	     }
2904	 */
2905	     description "Ethernet label.";
2906	     case eth {
2907	       uses etht-types:eth-label;
2908	     }
2909	   }

2911	   /* Augment label restrictions of TE link template */
2912	   augment "/nw:networks/tet:te/tet:templates/"
2913	         + "tet:link-template/tet:te-link-attributes/"
2914	         + "tet:label-restrictions/tet:label-restriction" {
2915	 /*
2916	     when "../../../../../nw:network-types/tet:te-topology/"
2917	         + "ethtetopo:eth-tran-topology" {
2918	       description "Ethernet TE label";
2919	     }
2920	 */
2921	     description "Ethernet label.";
2922	     uses etht-types:eth-label-restriction;
2923	   }

2925	   /* Augment label restrictions start of TE link template */
2926	   augment "/nw:networks/tet:te/tet:templates/"
2927	         + "tet:link-template/tet:te-link-attributes/"
2928	         + "tet:label-restrictions/tet:label-restriction/"
2929	         + "tet:label-start/tet:te-label/tet:technology" {
2930	 /*
2931	     when "../../../../../../../nw:network-types/tet:te-topology/"
2932	         + "ethtetopo:eth-tran-topology" {
2933	       description "Ethernet TE label";

2935	     }
2936	 */
2937	     description "Ethernet label.";
2938	     case eth {
2939	       uses etht-types:eth-label;
2940	     }
2941	   }

2943	   /* Augment label restrictions end of TE link template */
2944	   augment "/nw:networks/tet:te/tet:templates/"
2945	         + "tet:link-template/tet:te-link-attributes/"
2946	         + "tet:label-restrictions/tet:label-restriction/"
2947	         + "tet:label-end/tet:te-label/tet:technology" {
2948	 /*
2949	     when "../../../../../../../nw:network-types/tet:te-topology/"
2950	         + "ethtetopo:eth-tran-topology" {
2951	       description "Ethernet TE label";
2952	     }
2953	 */
2954	     description "Ethernet label.";
2955	     case eth {
2956	       uses etht-types:eth-label;
2957	     }
2958	   }

2960	   /* Augment label restrictions step of TE link template */
2961	   augment "/nw:networks/tet:te/tet:templates/"
2962	         + "tet:link-template/tet:te-link-attributes/"
2963	         + "tet:label-restrictions/tet:label-restriction/"
2964	         + "tet:label-step/tet:technology" {
2965	 /*
2966	     when "../../../../../../nw:network-types/tet:te-topology/"
2967	         + "ethtetopo:eth-tran-topology" {
2968	       description "Ethernet TE label";
2969	     }
2970	 */
2971	     description "Ethernet label.";
2972	     case eth {
2973	       uses etht-types:eth-label-step;
2974	     }
2975	   }

2977	 }

2979	 <CODE ENDS>

2981	5.  Considerations and Open Issue

2983	   Editor Notes: This section is used to note temporary discussion/
2984	   conclusion that to be fixed in the future version, and will be
2985	   removed before publication.  201902: we have noticed that Ethernet is
2986	   the only client signal (on the perspective of OTN) which need a
2987	   topology.  So it is possible that the title of this document will be
2988	   changed to "A YANG Data Model for Ethernet Topology".  The proposal
2989	   of this work is that the document will follow up the progress of
2990	   draft-zheng-ccamp-client-signal-yang, with draft-zheng-ccamp-client-
2991	   tunnel-yang together.  (solved in -06) 201902: will have to align
2992	   with TE topology model, currently is a totally different format with
2993	   necessary parameters, a big change is expected.  (solved in -06.)

2995	6.  IANA Considerations

2997	   It is proposed that IANA should assign new URIs from the "IETF XML
2998	   Registry" [RFC3688] as follows:

3000	         URI: urn:ietf:params:xml:ns:yang:ietf-eth-te-topology
3001	         Registrant Contact: The IESG
3002	         XML: N/A; the requested URI is an XML namespace.

3004	   This document registers following YANG modules in the YANG Module
3005	   Names registry [RFC7950].

3007	          name:         ietf-eth-te-topology
3008	          namespace:    urn:ietf:params:xml:ns:yang:ietf-eth-te-topology
3009	          prefix:       ethtetopo
3010	          reference:    RFC XXXX (This document)

3012	7.  Manageability Considerations

3014	   TBD.

3016	8.  Security Considerations

3018	   The data following the model defined in this document is exchanged
3019	   via, for example, the interface between an orchestrator and a
3020	   transport network controller.  The security concerns mentioned in
3021	   [I-D.ietf-teas-yang-te-topo] for using ietf-te-topology.yang model
3022	   also applies to this document.

3024	   The YANG module defined in this document can be accessed via the
3025	   RESTCONF protocol defined in [RFC8040], or maybe via the NETCONF
3026	   protocol [RFC6241].

3028	   There are a number of data nodes defined in the YANG module which are
3029	   writable/creatable/deletable (i.e., config true, which is the
3030	   default).  These data nodes may be considered sensitive or vulnerable
3031	   in some network environments.  Write operations (e.g., POST) to these
3032	   data nodes without proper protection can have a negative effect on
3033	   network operations.

3035	   Editors note: to list specific subtrees and data nodes and their
3036	   sensitivity/vulnerability.

3038	9.  Acknowledgements

3040	   We would like to thank Igor Bryskin and Daniel King for their
3041	   comments and discussions.

3043	10.  Contributors

3045	   Yanlei Zheng
3046	   China Unicom
3047	   Email: zhengyl@dimpt.com

3049	   Zhe Liu
3050	   Huawei Technologies,
3051	   Email: liuzhe123@huawei.com

3053	   Zheyu Fan
3054	   Huawei Technologies,
3055	   Email: fanzheyu2@huawei.com

3057	   Sergio Belotti
3058	   Nokia,
3059	   Email: sergio.belotti@nokia.com

3061	   Yingxi Yao
3062	   Shanghai Bell,
3063	   yingxi.yao@nokia-sbell.com

3065	   Giuseppe Fioccola
3066	   Huawei Technologies
3067	   giuseppe.fioccola@huawei.com

3069	11.  References

3071	11.1.  Normative References

3073	   [I-D.ietf-ccamp-otn-topo-yang]
3074	              Zheng, H., Busi, I., Liu, X., Belotti, S., and O. Dios, "A
3075	              YANG Data Model for Optical Transport Network Topology",
3076	              draft-ietf-ccamp-otn-topo-yang-09 (work in progress),
3077	              November 2019.

3079	   [I-D.ietf-teas-yang-te-topo]
3080	              Liu, X., Bryskin, I., Beeram, V., Saad, T., Shah, H., and
3081	              O. Dios, "YANG Data Model for Traffic Engineering (TE)
3082	              Topologies", draft-ietf-teas-yang-te-topo-22 (work in
3083	              progress), June 2019.

3085	   [RFC3688]  Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
3086	              DOI 10.17487/RFC3688, January 2004,
3087	              <https://www.rfc-editor.org/info/rfc3688>.

3089	   [RFC6241]  Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
3090	              and A. Bierman, Ed., "Network Configuration Protocol
3091	              (NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
3092	              <https://www.rfc-editor.org/info/rfc6241>.

3094	   [RFC7950]  Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
3095	              RFC 7950, DOI 10.17487/RFC7950, August 2016,
3096	              <https://www.rfc-editor.org/info/rfc7950>.

3098	   [RFC8040]  Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
3099	              Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
3100	              <https://www.rfc-editor.org/info/rfc8040>.

3102	11.2.  Informative References

3104	   [I-D.ietf-ccamp-wson-yang]
3105	              Lee, Y., Dhody, D., Guo, A., Lopezalvarez, V., and D.
3106	              King, "A YANG Data Model for WSON (Wavelength Switched
3107	              Optical Networks)", draft-ietf-ccamp-wson-yang-22 (work in
3108	              progress), July 2019.

3110	   [RFC8340]  Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams",
3111	              BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018,
3112	              <https://www.rfc-editor.org/info/rfc8340>.

3114	Authors' Addresses

3116	   Haomian Zheng
3117	   Huawei Technologies
3118	   H1-1-A043S Huawei Industrial Base, Songshanhu
3119	   Dongguan, Guangdong  523808
3120	   China

3122	   Email: zhenghaomian@huawei.com

3124	   Aihua Guo
3125	   Individual

3127	   Email: aihuaguo.ietf@gmail.com

3129	   Italo Busi
3130	   Huawei Technologies

3132	   Email: Italo.Busi@huawei.com

3134	   Yunbin Xu
3135	   CAICT

3137	   Email: xuyunbin@caict.ac.cn

3139	   Yang Zhao
3140	   China Mobile

3142	   Email: zhaoyangyjy@chinamobile.com

3144	   Xufeng Liu
3145	   Volta Networks

3147	   Email: xufeng.liu.ietf@gmail.com