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

14	               A YANG Data Model for Ethernet TE Topology
15	                 draft-zheng-ccamp-client-topo-yang-06

17	Abstract

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

23	Status of This Memo

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

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

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

38	   This Internet-Draft will expire on January 9, 2020.

40	Copyright Notice

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

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

55	Table of Contents

57	   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
58	   2.  Terminology and Notations . . . . . . . . . . . . . . . . . .   3
59	   3.  YANG Model for Topology of Client Layer . . . . . . . . . . .   3
60	     3.1.  YANG Tree for Ethernet Topology . . . . . . . . . . . . .   3
61	   4.  YANG Code for Topology Client Layer . . . . . . . . . . . . .  19
62	     4.1.  The ETH Topology YANG Code  . . . . . . . . . . . . . . .  19
63	   5.  Considerations and Open Issue . . . . . . . . . . . . . . . .  60
64	   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  60
65	   7.  Manageability Considerations  . . . . . . . . . . . . . . . .  60
66	   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  60
67	   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  61
68	   10. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  61
69	   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  61
70	     11.1.  Normative References . . . . . . . . . . . . . . . . . .  61
71	     11.2.  Informative References . . . . . . . . . . . . . . . . .  62
72	   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  62

74	1.  Introduction

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

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

95	2.  Terminology and Notations

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

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

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

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

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

113	   o  Ellipsis ("...") stands for contents of subtrees that are not
114	      shown.

116	3.  YANG Model for Topology of Client Layer

118	3.1.  YANG Tree for Ethernet Topology

120	module: ietf-eth-te-topology
121	  augment /nw:networks/nw:network/nw:network-types/tet:te-topology:
122	    +--rw eth-tran-topology!
123	  augment /nw:networks/nw:network/nw:node/nt:termination-point:
124	    +--rw ltp-mac-address?                          yang:mac-address
125	    +--rw port-vlan-id?                             etht-types:vlanid
126	    +--rw maximum-frame-size?                       uint16
127	    +--rw (direction)?
128	    |  +--:(symmetrical)
129	    |  |  +--rw ingress-egress-bandwidth-profile
130	    |  |     +--rw bandwidth-profile-type?   etht-types:bandwidth-profile-type
131	    |  |     +--rw CIR?                      uint64
132	    |  |     +--rw CBS?                      uint64
133	    |  |     +--rw EIR?                      uint64
134	    |  |     +--rw EBS?                      uint64
135	    |  |     +--rw color-aware?              boolean
136	    |  |     +--rw coupling-flag?            boolean
137	    |  +--:(asymmetrical)
138	    |     +--rw ingress-bandwidth-profile
139	    |     |  +--rw bandwidth-profile-type?   etht-types:bandwidth-profile-type
140	    |     |  +--rw CIR?                      uint64
141	    |     |  +--rw CBS?                      uint64
142	    |     |  +--rw EIR?                      uint64
143	    |     |  +--rw EBS?                      uint64
144	    |     |  +--rw color-aware?              boolean
145	    |     |  +--rw coupling-flag?            boolean
146	    |     +--rw egress-bandwidth-profile
147	    |        +--rw bandwidth-profile-type?   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 eth-svc!
155	       +--rw client-facing?               boolean
156	       +--rw supported-classification
157	       |  +--rw transparent?           boolean
158	       |  +--rw port-classification?   boolean
159	       |  +--rw vlan-classification
160	       |     +--rw vlan-tag-classification?   boolean
161	       |     +--rw outer-tag
162	       |     |  +--rw supported-tag-types*   etht-types:eth-tag-classify
163	       |     |  +--rw vlan-bundling?         boolean
164	       |     |  +--rw vlan-range?            etht-types:vid-range-type
165	       |     +--rw second-tag
166	       |        +--rw second-tag-classification?   boolean
167	       |        +--rw supported-tag-types*         etht-types:eth-tag-classify
168	       |        +--rw vlan-bundling?               boolean
169	       |        +--rw vlan-range?                  etht-types:vid-range-type
170	       +--rw supported-vlan-operations
171	          +--rw asymmetrical-operations?       boolean
172	          +--rw transparent-vlan-operations?   boolean
173	          +--rw vlan-pop
174	          |  +--rw vlan-pop-operations?   boolean
175	          |  +--rw max-pop-tags?          uint8
176	          +--rw vlan-push
177	             +--rw vlan-push-operation?   boolean
178	             +--rw outer-tag
179	             |  +--rw supported-tag-types*   etht-types:eth-tag-type
180	             |  +--rw vlan-range?            etht-types:vid-range-type
181	             +--rw second-tag
182	                +--rw push-second-tag?       boolean
183	                +--rw supported-tag-types*   etht-types:eth-tag-type
184	                +--rw vlan-range?            etht-types:vid-range-type
185	  augment /nw:networks/nw:network/nw:node/nt:termination-point
186	          /tet:te/tet:interface-switching-capability
187	                  /tet:max-lsp-bandwidth/tet:te-bandwidth/tet:technology:
188	    +--:(eth)
189	       +--rw eth-bandwidth?   uint64
190	  augment /nw:networks/nw:network/nw:node/tet:te
191	          /tet:te-node-attributes/tet:connectivity-matrices
192	                  /tet:path-constraints/tet:te-bandwidth/tet:technology:
193	    +--:(eth)
194	       +--rw eth-bandwidth?   uint64
195	  augment /nw:networks/nw:network/nw:node/tet:te
196	          /tet:te-node-attributes/tet:connectivity-matrices
197	                  /tet:connectivity-matrix/tet:path-constraints
198	                  /tet:te-bandwidth/tet:technology:
199	    +--:(eth)
200	       +--rw eth-bandwidth?   uint64
201	  augment /nw:networks/nw:network/nw:node/tet:te
202	          /tet:information-source-entry/tet:connectivity-matrices
203	                  /tet:path-constraints/tet:te-bandwidth/tet:technology:
204	    +--:(eth)
205	       +--ro eth-bandwidth?   uint64
206	  augment /nw:networks/nw:network/nw:node/tet:te
207	          /tet:information-source-entry/tet:connectivity-matrices
208	                  /tet:connectivity-matrix/tet:path-constraints
209	                  /tet:te-bandwidth/tet:technology:
210	    +--:(eth)
211	       +--ro eth-bandwidth?   uint64
212	  augment /nw:networks/nw:network/nw:node/tet:te
213	          /tet:tunnel-termination-point/tet:client-layer-adaptation
214	                  /tet:switching-capability/tet:te-bandwidth/tet:technology:
215	    +--:(eth)
216	       +--rw eth-bandwidth?   uint64
217	  augment /nw:networks/nw:network/nw:node/tet:te
218	          /tet:tunnel-termination-point
219	                  /tet:local-link-connectivities/tet:path-constraints
220	                  /tet:te-bandwidth/tet:technology:
221	    +--:(eth)
222	       +--rw eth-bandwidth?   uint64
223	  augment /nw:networks/nw:network/nw:node/tet:te
224	          /tet:tunnel-termination-point
225	                  /tet:local-link-connectivities
226	                  /tet:local-link-connectivity/tet:path-constraints
227	                  /tet:te-bandwidth/tet:technology:
228	    +--:(eth)
229	       +--rw eth-bandwidth?   uint64
230	  augment /nw:networks/nw:network/nt:link/tet:te
231	          /tet:te-link-attributes
232	                  /tet:interface-switching-capability
233	                  /tet:max-lsp-bandwidth/tet:te-bandwidth/tet:technology:
234	    +--:(eth)
235	       +--rw eth-bandwidth?   uint64
236	  augment /nw:networks/nw:network/nt:link/tet:te
237	          /tet:te-link-attributes/tet:max-link-bandwidth
238	                  /tet:te-bandwidth/tet:technology:
239	    +--:(eth)
240	       +--rw eth-bandwidth?   uint64
241	  augment /nw:networks/nw:network/nt:link/tet:te
242	          /tet:te-link-attributes/tet:max-resv-link-bandwidth
243	                  /tet:te-bandwidth/tet:technology:
244	    +--:(eth)
245	       +--rw eth-bandwidth?   uint64
246	  augment /nw:networks/nw:network/nt:link/tet:te
247	          /tet:te-link-attributes/tet:unreserved-bandwidth
248	                  /tet:te-bandwidth/tet:technology:
249	    +--:(eth)
250	       +--rw eth-bandwidth?   uint64
251	  augment /nw:networks/nw:network/nt:link/tet:te
252	          /tet:information-source-entry
253	                  /tet:interface-switching-capability
254	                  /tet:max-lsp-bandwidth/tet:te-bandwidth/tet:technology:
255	    +--:(eth)
256	       +--ro eth-bandwidth?   uint64
257	  augment /nw:networks/nw:network/nt:link/tet:te
258	          /tet:information-source-entry/tet:max-link-bandwidth
259	                  /tet:te-bandwidth/tet:technology:
260	    +--:(eth)
261	       +--ro eth-bandwidth?   uint64
262	  augment /nw:networks/nw:network/nt:link/tet:te
263	          /tet:information-source-entry
264	                  /tet:max-resv-link-bandwidth
265	                  /tet:te-bandwidth/tet:technology:
266	    +--:(eth)
267	       +--ro eth-bandwidth?   uint64
268	  augment /nw:networks/nw:network/nt:link/tet:te
269	          /tet:information-source-entry/tet:unreserved-bandwidth
270	                  /tet:te-bandwidth/tet:technology:
271	    +--:(eth)
272	       +--ro eth-bandwidth?   uint64
273	  augment /nw:networks/tet:te/tet:templates/tet:link-template
274	          /tet:te-link-attributes
275	                  /tet:interface-switching-capability
276	                  /tet:max-lsp-bandwidth/tet:te-bandwidth/tet:technology:
277	    +--:(eth)
278	       +--rw eth-bandwidth?   uint64
279	  augment /nw:networks/tet:te/tet:templates/tet:link-template
280	          /tet:te-link-attributes/tet:max-link-bandwidth
281	                  /tet:te-bandwidth/tet:technology:
282	    +--:(eth)
283	       +--rw eth-bandwidth?   uint64
284	  augment /nw:networks/tet:te/tet:templates/tet:link-template
285	          /tet:te-link-attributes/tet:max-resv-link-bandwidth
286	                  /tet:te-bandwidth/tet:technology:
287	    +--:(eth)
288	       +--rw eth-bandwidth?   uint64
289	  augment /nw:networks/tet:te/tet:templates/tet:link-template
290	          /tet:te-link-attributes/tet:unreserved-bandwidth
291	                  /tet:te-bandwidth/tet:technology:
292	    +--:(eth)
293	       +--rw eth-bandwidth?   uint64
294	  augment /nw:networks/nw:network/nw:node/tet:te
295	          /tet:te-node-attributes/tet:connectivity-matrices
296	                  /tet:label-restrictions/tet:label-restriction:
297	    +--rw tag-type?   etht-types:eth-tag-type
298	    +--rw priority?   uint8
299	  augment /nw:networks/nw:network/nw:node/tet:te
300	          /tet:te-node-attributes/tet:connectivity-matrices
301	                  /tet:label-restrictions/tet:label-restriction
302	                  /tet:label-start/tet:te-label/tet:technology:
303	    +--:(eth)
304	       +--rw vlanid?   etht-types:vlanid
305	  augment /nw:networks/nw:network/nw:node/tet:te
306	          /tet:te-node-attributes/tet:connectivity-matrices
307	                  /tet:label-restrictions/tet:label-restriction
308	                  /tet:label-end/tet:te-label/tet:technology:
309	    +--:(eth)
310	       +--rw vlanid?   etht-types:vlanid
311	  augment /nw:networks/nw:network/nw:node/tet:te
312	          /tet:te-node-attributes/tet:connectivity-matrices
313	                  /tet:label-restrictions/tet:label-restriction
314	                  /tet:label-step/tet:technology:
315	    +--:(eth)
316	       +--rw eth-step?   uint16
317	  augment /nw:networks/nw:network/nw:node/tet:te
318	          /tet:te-node-attributes/tet:connectivity-matrices
319	                  /tet:underlay/tet:primary-path/tet:path-element
320	                  /tet:type/tet:label/tet:label-hop/tet:te-label
321	                  /tet:technology:
322	    +--:(eth)
323	       +--rw vlanid?   etht-types:vlanid
324	  augment /nw:networks/nw:network/nw:node/tet:te
325	          /tet:te-node-attributes/tet:connectivity-matrices
326	                  /tet:underlay/tet:backup-path/tet:path-element
327	                  /tet:type/tet:label/tet:label-hop/tet:te-label
328	                  /tet:technology:
329	    +--:(eth)
330	       +--rw vlanid?   etht-types:vlanid
331	  augment /nw:networks/nw:network/nw:node/tet:te
332	          /tet:te-node-attributes/tet:connectivity-matrices
333	                  /tet:optimizations/tet:algorithm/tet:metric
334	                  /tet:optimization-metric
335	                  /tet:explicit-route-exclude-objects
336	                  /tet:route-object-exclude-object/tet:type/tet:label
337	                  /tet:label-hop/tet:te-label/tet:technology:
338	    +--:(eth)
339	       +--rw vlanid?   etht-types:vlanid
340	  augment /nw:networks/nw:network/nw:node/tet:te
341	          /tet:te-node-attributes/tet:connectivity-matrices
342	                  /tet:optimizations/tet:algorithm/tet:metric
343	                  /tet:optimization-metric
344	                  /tet:explicit-route-include-objects
345	                  /tet:route-object-include-object/tet:type/tet:label
346	                  /tet:label-hop/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/tet:connectivity-matrices
351	                  /tet:path-properties/tet:path-route-objects
352	                  /tet:path-route-object/tet:type/tet:label
353	                  /tet:label-hop/tet:te-label/tet:technology:
354	    +--:(eth)
355	       +--ro vlanid?   etht-types:vlanid
356	  augment /nw:networks/nw:network/nw:node/tet:te
357	          /tet:te-node-attributes/tet:connectivity-matrices
358	                  /tet:connectivity-matrix/tet:from
359	                  /tet:label-restrictions/tet:label-restriction:
360	    +--rw tag-type?   etht-types:eth-tag-type
361	    +--rw priority?   uint8
362	  augment /nw:networks/nw:network/nw:node/tet:te
363	          /tet:te-node-attributes/tet:connectivity-matrices
364	                  /tet:connectivity-matrix/tet:from
365	                  /tet:label-restrictions/tet:label-restriction
366	                  /tet:label-start/tet:te-label/tet:technology:
367	    +--:(eth)
368	       +--rw vlanid?   etht-types:vlanid
369	  augment /nw:networks/nw:network/nw:node/tet:te
370	          /tet:te-node-attributes/tet:connectivity-matrices
371	                  /tet:connectivity-matrix/tet:from
372	                  /tet:label-restrictions/tet:label-restriction
373	                  /tet:label-end/tet:te-label/tet:technology:
374	    +--:(eth)
375	       +--rw vlanid?   etht-types:vlanid
376	  augment /nw:networks/nw:network/nw:node/tet:te
377	          /tet:te-node-attributes/tet:connectivity-matrices
378	                  /tet:connectivity-matrix/tet:from
379	                  /tet:label-restrictions/tet:label-restriction
380	                  /tet:label-step/tet:technology:

382	    +--:(eth)
383	       +--rw eth-step?   uint16
384	  augment /nw:networks/nw:network/nw:node/tet:te
385	          /tet:te-node-attributes/tet:connectivity-matrices
386	                  /tet:connectivity-matrix/tet:to
387	                  /tet:label-restrictions/tet:label-restriction:
388	    +--rw tag-type?   etht-types:eth-tag-type
389	    +--rw priority?   uint8
390	  augment /nw:networks/nw:network/nw:node/tet:te
391	          /tet:te-node-attributes/tet:connectivity-matrices
392	                  /tet:connectivity-matrix/tet:to
393	                  /tet:label-restrictions/tet:label-restriction
394	                  /tet:label-start/tet:te-label/tet:technology:
395	    +--:(eth)
396	       +--rw vlanid?   etht-types:vlanid
397	  augment /nw:networks/nw:network/nw:node/tet:te
398	          /tet:te-node-attributes/tet:connectivity-matrices
399	                  /tet:connectivity-matrix/tet:to
400	                  /tet:label-restrictions/tet:label-restriction
401	                  /tet:label-end/tet:te-label/tet:technology:
402	    +--:(eth)
403	       +--rw vlanid?   etht-types:vlanid
404	  augment /nw:networks/nw:network/nw:node/tet:te
405	          /tet:te-node-attributes/tet:connectivity-matrices
406	                  /tet:connectivity-matrix/tet:to
407	                  /tet:label-restrictions/tet:label-restriction
408	                  /tet:label-step/tet:technology:
409	    +--:(eth)
410	       +--rw eth-step?   uint16
411	  augment /nw:networks/nw:network/nw:node/tet:te
412	          /tet:te-node-attributes/tet:connectivity-matrices
413	                  /tet:connectivity-matrix/tet:underlay
414	                  /tet:primary-path/tet:path-element/tet:type
415	                  /tet:label/tet:label-hop/tet:te-label
416	                  /tet:technology:
417	    +--:(eth)
418	       +--rw vlanid?   etht-types:vlanid
419	  augment /nw:networks/nw:network/nw:node/tet:te
420	          /tet:te-node-attributes/tet:connectivity-matrices
421	                  /tet:connectivity-matrix/tet:underlay
422	                  /tet:backup-path/tet:path-element/tet:type
423	                  /tet:label/tet:label-hop/tet:te-label
424	                  /tet:technology:
425	    +--:(eth)
426	       +--rw vlanid?   etht-types:vlanid
427	  augment /nw:networks/nw:network/nw:node/tet:te
428	          /tet:te-node-attributes/tet:connectivity-matrices
429	                  /tet:connectivity-matrix/tet:optimizations
430	                  /tet:algorithm/tet:metric/tet:optimization-metric
431	                  /tet:explicit-route-exclude-objects
432	                  /tet:route-object-exclude-object/tet:type/tet:label
433	                  /tet:label-hop/tet:te-label/tet:technology:
434	    +--:(eth)
435	       +--rw vlanid?   etht-types:vlanid
436	  augment /nw:networks/nw:network/nw:node/tet:te
437	          /tet:te-node-attributes/tet:connectivity-matrices
438	                  /tet:connectivity-matrix/tet:optimizations
439	                  /tet:algorithm/tet:metric/tet:optimization-metric
440	                  /tet:explicit-route-include-objects
441	                  /tet:route-object-include-object/tet:type/tet:label
442	                  /tet:label-hop/tet:te-label/tet:technology:
443	    +--:(eth)
444	       +--rw vlanid?   etht-types:vlanid
445	  augment /nw:networks/nw:network/nw:node/tet:te
446	          /tet:te-node-attributes/tet:connectivity-matrices
447	                  /tet:connectivity-matrix/tet:path-properties
448	                  /tet:path-route-objects/tet:path-route-object
449	                  /tet:type/tet:label/tet:label-hop/tet:te-label
450	                  /tet:technology:
451	    +--:(eth)
452	       +--ro vlanid?   etht-types:vlanid
453	  augment /nw:networks/nw:network/nw:node/tet:te
454	          /tet:information-source-entry
455	                  /tet:connectivity-matrices
456	                  /tet:label-restrictions/tet:label-restriction:
457	    +--ro tag-type?   etht-types:eth-tag-type
458	    +--ro priority?   uint8
459	  augment /nw:networks/nw:network/nw:node/tet:te
460	          /tet:information-source-entry
461	                  /tet:connectivity-matrices
462	                  /tet:label-restrictions
463	                  /tet:label-restriction/tet:label-start
464	                  /tet:te-label/tet:technology:
465	    +--:(eth)
466	       +--ro vlanid?   etht-types:vlanid
467	  augment /nw:networks/nw:network/nw:node/tet:te
468	          /tet:information-source-entry
469	                  /tet:connectivity-matrices
470	                  /tet:label-restrictions
471	                  /tet:label-restriction/tet:label-end
472	                  /tet:te-label/tet:technology:
473	    +--:(eth)
474	       +--ro vlanid?   etht-types:vlanid
475	  augment /nw:networks/nw:network/nw:node/tet:te
476	          /tet:information-source-entry
477	                  /tet:connectivity-matrices
478	                  /tet:label-restrictions/tet:label-restriction
479	                  /tet:label-step/tet:technology:
480	    +--:(eth)
481	       +--ro eth-step?   uint16
482	  augment /nw:networks/nw:network/nw:node/tet:te
483	          /tet:information-source-entry
484	                  /tet:connectivity-matrices/tet:underlay
485	                  /tet:primary-path/tet:path-element/tet:type
486	                  /tet:label/tet:label-hop/tet:te-label
487	                  /tet:technology:
488	    +--:(eth)
489	       +--ro vlanid?   etht-types:vlanid
490	  augment /nw:networks/nw:network/nw:node/tet:te
491	          /tet:information-source-entry
492	                  /tet:connectivity-matrices/tet:underlay
493	                  /tet:backup-path/tet:path-element
494	                  /tet:type/tet:label/tet:label-hop
495	                  /tet:te-label/tet:technology:
496	    +--:(eth)
497	       +--ro vlanid?   etht-types:vlanid
498	  augment /nw:networks/nw:network/nw:node/tet:te
499	          /tet:information-source-entry
500	                  /tet:connectivity-matrices/tet:optimizations
501	                  /tet:algorithm/tet:metric/tet:optimization-metric
502	                  /tet:explicit-route-exclude-objects
503	                  /tet:route-object-exclude-object/tet:type/tet:label
504	                  /tet:label-hop/tet:te-label/tet:technology:
505	    +--:(eth)
506	       +--ro vlanid?   etht-types:vlanid
507	  augment /nw:networks/nw:network/nw:node/tet:te
508	          /tet:information-source-entry
509	                  /tet:connectivity-matrices/tet:optimizations
510	                  /tet:algorithm/tet:metric/tet:optimization-metric
511	                  /tet:explicit-route-include-objects
512	                  /tet:route-object-include-object/tet:type/tet:label
513	                  /tet:label-hop/tet:te-label/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/tet:path-properties
519	                  /tet:path-route-objects/tet:path-route-object
520	                  /tet:type/tet:label/tet:label-hop/tet:te-label
521	                  /tet:technology:
522	    +--:(eth)
523	       +--ro vlanid?   etht-types:vlanid
524	  augment /nw:networks/nw:network/nw:node/tet:te
525	          /tet:information-source-entry
526	                  /tet:connectivity-matrices
527	                  /tet:connectivity-matrix/tet:from
528	                  /tet:label-restrictions/tet:label-restriction:
529	    +--ro tag-type?   etht-types:eth-tag-type
530	    +--ro priority?   uint8
531	  augment /nw:networks/nw:network/nw:node/tet:te
532	          /tet:information-source-entry
533	                  /tet:connectivity-matrices
534	                  /tet:connectivity-matrix/tet:from
535	                  /tet:label-restrictions/tet:label-restriction
536	                  /tet:label-start/tet:te-label/tet:technology:
537	    +--:(eth)
538	       +--ro vlanid?   etht-types:vlanid
539	  augment /nw:networks/nw:network/nw:node/tet:te
540	          /tet:information-source-entry
541	                  /tet:connectivity-matrices
542	                  /tet:connectivity-matrix/tet:from
543	                  /tet:label-restrictions
544	                  /tet:label-restriction/tet:label-end
545	                  /tet:te-label/tet:technology:
546	    +--:(eth)
547	       +--ro vlanid?   etht-types:vlanid
548	  augment /nw:networks/nw:network/nw:node/tet:te
549	          /tet:information-source-entry
550	                  /tet:connectivity-matrices
551	                  /tet:connectivity-matrix/tet:from
552	                  /tet:label-restrictions/tet:label-restriction
553	                  /tet:label-step/tet:technology:
554	    +--:(eth)
555	       +--ro eth-step?   uint16
556	  augment /nw:networks/nw:network/nw:node/tet:te
557	          /tet:information-source-entry
558	                  /tet:connectivity-matrices
559	                  /tet:connectivity-matrix/tet:to
560	                  /tet:label-restrictions/tet:label-restriction:
561	    +--ro tag-type?   etht-types:eth-tag-type
562	    +--ro priority?   uint8
563	  augment /nw:networks/nw:network/nw:node/tet:te
564	          /tet:information-source-entry
565	                  /tet:connectivity-matrices
566	                  /tet:connectivity-matrix/tet:to
567	                  /tet:label-restrictions/tet:label-restriction
568	                  /tet:label-start/tet:te-label/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
574	                  /tet:connectivity-matrix/tet:to
575	                  /tet:label-restrictions/tet:label-restriction
576	                  /tet:label-end/tet:te-label/tet:technology:
577	    +--:(eth)
578	       +--ro vlanid?   etht-types:vlanid
579	  augment /nw:networks/nw:network/nw:node/tet:te
580	          /tet:information-source-entry
581	                  /tet:connectivity-matrices
582	                  /tet:connectivity-matrix/tet:to
583	                  /tet:label-restrictions/tet:label-restriction
584	                  /tet:label-step/tet:technology:
585	    +--:(eth)
586	       +--ro eth-step?   uint16
587	  augment /nw:networks/nw:network/nw:node/tet:te
588	          /tet:information-source-entry
589	                  /tet:connectivity-matrices
590	                  /tet:connectivity-matrix/tet:underlay
591	                  /tet:primary-path/tet:path-element/tet:type
592	                  /tet:label/tet:label-hop/tet:te-label
593	                  /tet:technology:
594	    +--:(eth)
595	       +--ro vlanid?   etht-types:vlanid
596	  augment /nw:networks/nw:network/nw:node/tet:te
597	          /tet:information-source-entry
598	                  /tet:connectivity-matrices
599	                  /tet:connectivity-matrix/tet:underlay
600	                  /tet:backup-path/tet:path-element/tet:type/tet:label
601	                  /tet:label-hop/tet:te-label/tet:technology:
602	    +--:(eth)
603	       +--ro vlanid?   etht-types:vlanid
604	  augment /nw:networks/nw:network/nw:node/tet:te
605	          /tet:information-source-entry
606	                  /tet:connectivity-matrices/tet:connectivity-matrix
607	                  /tet:optimizations/tet:algorithm/tet:metric
608	                  /tet:optimization-metric
609	                  /tet:explicit-route-exclude-objects
610	                  /tet:route-object-exclude-object/tet:type/tet:label
611	                  /tet:label-hop/tet:te-label/tet:technology:
612	    +--:(eth)
613	       +--ro vlanid?   etht-types:vlanid
614	  augment /nw:networks/nw:network/nw:node/tet:te
615	          /tet:information-source-entry
616	                  /tet:connectivity-matrices/tet:connectivity-matrix
617	                  /tet:optimizations/tet:algorithm/tet:metric
618	                  /tet:optimization-metric
619	                  /tet:explicit-route-include-objects
620	                  /tet:route-object-include-object/tet:type/tet:label
621	                  /tet:label-hop/tet:te-label/tet:technology:

623	    +--:(eth)
624	       +--ro vlanid?   etht-types:vlanid
625	  augment /nw:networks/nw:network/nw:node/tet:te
626	          /tet:information-source-entry
627	                  /tet:connectivity-matrices/tet:connectivity-matrix
628	                  /tet:path-properties/tet:path-route-objects
629	                  /tet:path-route-object/tet:type/tet:label
630	                  /tet:label-hop/tet:te-label/tet:technology:
631	    +--:(eth)
632	       +--ro vlanid?   etht-types:vlanid
633	  augment /nw:networks/nw:network/nw:node/tet:te
634	          /tet:tunnel-termination-point
635	                  /tet:local-link-connectivities
636	                  /tet:label-restrictions/tet:label-restriction:
637	    +--rw tag-type?   etht-types:eth-tag-type
638	    +--rw priority?   uint8
639	  augment /nw:networks/nw:network/nw:node/tet:te
640	          /tet:tunnel-termination-point
641	                  /tet:local-link-connectivities
642	                  /tet:label-restrictions/tet:label-restriction
643	                  /tet:label-start/tet:te-label/tet:technology:
644	    +--:(eth)
645	       +--rw vlanid?   etht-types:vlanid
646	  augment /nw:networks/nw:network/nw:node/tet:te
647	          /tet:tunnel-termination-point
648	                  /tet:local-link-connectivities
649	                  /tet:label-restrictions/tet:label-restriction
650	                  /tet:label-end/tet:te-label/tet:technology:
651	    +--:(eth)
652	       +--rw vlanid?   etht-types:vlanid
653	  augment /nw:networks/nw:network/nw:node/tet:te
654	          /tet:tunnel-termination-point
655	                  /tet:local-link-connectivities
656	                  /tet:label-restrictions/tet:label-restriction
657	                  /tet:label-step/tet:technology:
658	    +--:(eth)
659	       +--rw eth-step?   uint16
660	  augment /nw:networks/nw:network/nw:node/tet:te
661	          /tet:tunnel-termination-point
662	                  /tet:local-link-connectivities/tet:underlay
663	                  /tet:primary-path/tet:path-element/tet:type
664	                  /tet:label/tet:label-hop/tet:te-label
665	                  /tet:technology:
666	    +--:(eth)
667	       +--rw vlanid?   etht-types:vlanid
668	  augment /nw:networks/nw:network/nw:node/tet:te
669	          /tet:tunnel-termination-point
670	                  /tet:local-link-connectivities/tet:underlay
671	                  /tet:backup-path/tet:path-element/tet:type
672	                  /tet:label/tet:label-hop/tet:te-label
673	                  /tet:technology:
674	    +--:(eth)
675	       +--rw vlanid?   etht-types:vlanid
676	  augment /nw:networks/nw:network/nw:node/tet:te
677	          /tet:tunnel-termination-point
678	                  /tet:local-link-connectivities
679	                  /tet:optimizations/tet:algorithm/tet:metric
680	                  /tet:optimization-metric
681	                  /tet:explicit-route-exclude-objects
682	                  /tet:route-object-exclude-object/tet:type
683	                  /tet:label/tet:label-hop/tet:te-label
684	                  /tet:technology:
685	    +--:(eth)
686	       +--rw vlanid?   etht-types:vlanid
687	  augment /nw:networks/nw:network/nw:node/tet:te
688	          /tet:tunnel-termination-point
689	                  /tet:local-link-connectivities
690	                  /tet:optimizations/tet:algorithm/tet:metric
691	                  /tet:optimization-metric
692	                  /tet:explicit-route-include-objects
693	                  /tet:route-object-include-object/tet:type
694	                  /tet:label/tet:label-hop/tet:te-label
695	                  /tet:technology:
696	    +--:(eth)
697	       +--rw vlanid?   etht-types:vlanid
698	  augment /nw:networks/nw:network/nw:node/tet:te
699	          /tet:tunnel-termination-point
700	                  /tet:local-link-connectivities
701	                  /tet:path-properties/tet:path-route-objects
702	                  /tet:path-route-object/tet:type/tet:label
703	                  /tet:label-hop/tet:te-label/tet:technology:
704	    +--:(eth)
705	       +--ro vlanid?   etht-types:vlanid
706	  augment /nw:networks/nw:network/nw:node/tet:te
707	          /tet:tunnel-termination-point
708	                  /tet:local-link-connectivities
709	                  /tet:local-link-connectivity
710	                  /tet:label-restrictions/tet:label-restriction:
711	    +--rw tag-type?   etht-types:eth-tag-type
712	    +--rw priority?   uint8
713	  augment /nw:networks/nw:network/nw:node/tet:te
714	          /tet:tunnel-termination-point
715	                  /tet:local-link-connectivities
716	                  /tet:local-link-connectivity
717	                  /tet:label-restrictions/tet:label-restriction
718	                  /tet:label-start/tet:te-label/tet:technology:

720	    +--:(eth)
721	       +--rw vlanid?   etht-types:vlanid
722	  augment /nw:networks/nw:network/nw:node/tet:te
723	          /tet:tunnel-termination-point
724	                  /tet:local-link-connectivities
725	                  /tet:local-link-connectivity
726	                  /tet:label-restrictions/tet:label-restriction
727	                  /tet:label-end/tet:te-label/tet:technology:
728	    +--:(eth)
729	       +--rw vlanid?   etht-types:vlanid
730	  augment /nw:networks/nw:network/nw:node/tet:te
731	          /tet:tunnel-termination-point
732	                  /tet:local-link-connectivities
733	                  /tet:local-link-connectivity
734	                  /tet:label-restrictions/tet:label-restriction
735	                  /tet:label-step/tet:technology:
736	    +--:(eth)
737	       +--rw eth-step?   uint16
738	  augment /nw:networks/nw:network/nw:node/tet:te
739	          /tet:tunnel-termination-point
740	                  /tet:local-link-connectivities
741	                  /tet:local-link-connectivity/tet:underlay
742	                  /tet:primary-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
750	                  /tet:local-link-connectivity/tet:underlay
751	                  /tet:backup-path/tet:path-element/tet:type
752	                  /tet:label/tet:label-hop/tet:te-label
753	                  /tet:technology:
754	    +--:(eth)
755	       +--rw vlanid?   etht-types:vlanid
756	  augment /nw:networks/nw:network/nw:node/tet:te
757	          /tet:tunnel-termination-point
758	                  /tet:local-link-connectivities
759	                  /tet:local-link-connectivity/tet:optimizations
760	                  /tet:algorithm/tet:metric/tet:optimization-metric
761	                  /tet:explicit-route-exclude-objects
762	                  /tet:route-object-exclude-object/tet:type/tet:label
763	                  /tet:label-hop/tet:te-label/tet:technology:
764	    +--:(eth)
765	       +--rw vlanid?   etht-types:vlanid
766	  augment /nw:networks/nw:network/nw:node/tet:te
767	          /tet:tunnel-termination-point
768	                  /tet:local-link-connectivities
769	                  /tet:local-link-connectivity/tet:optimizations
770	                  /tet:algorithm/tet:metric/tet:optimization-metric
771	                  /tet:explicit-route-include-objects
772	                  /tet:route-object-include-object/tet:type/tet:label
773	                  /tet:label-hop/tet:te-label/tet:technology:
774	    +--:(eth)
775	       +--rw vlanid?   etht-types:vlanid
776	  augment /nw:networks/nw:network/nw:node/tet:te
777	          /tet:tunnel-termination-point
778	                  /tet:local-link-connectivities
779	                  /tet:local-link-connectivity/tet:path-properties
780	                  /tet:path-route-objects/tet:path-route-object
781	                  /tet:type/tet:label/tet:label-hop/tet:te-label
782	                  /tet:technology:
783	    +--:(eth)
784	       +--ro vlanid?   etht-types:vlanid
785	  augment /nw:networks/nw:network/nt:link/tet:te
786	          /tet:te-link-attributes/tet:underlay
787	                  /tet:primary-path/tet:path-element/tet:type
788	                  /tet:label/tet:label-hop/tet:te-label
789	                  /tet:technology:
790	    +--:(eth)
791	       +--rw vlanid?   etht-types:vlanid
792	  augment /nw:networks/nw:network/nt:link/tet:te
793	          /tet:te-link-attributes/tet:underlay
794	                  /tet:backup-path/tet:path-element/tet:type
795	                  /tet:label/tet:label-hop/tet:te-label
796	                  /tet:technology:
797	    +--:(eth)
798	       +--rw vlanid?   etht-types:vlanid
799	  augment /nw:networks/nw:network/nt:link/tet:te
800	          /tet:te-link-attributes/tet:label-restrictions
801	                  /tet:label-restriction:
802	    +--rw tag-type?   etht-types:eth-tag-type
803	    +--rw priority?   uint8
804	  augment /nw:networks/nw:network/nt:link/tet:te
805	          /tet:te-link-attributes/tet:label-restrictions
806	                  /tet:label-restriction/tet:label-start
807	                  /tet:te-label/tet:technology:
808	    +--:(eth)
809	       +--rw vlanid?   etht-types:vlanid
810	  augment /nw:networks/nw:network/nt:link/tet:te
811	          /tet:te-link-attributes/tet:label-restrictions
812	                  /tet:label-restriction/tet:label-end
813	                  /tet:te-label/tet:technology:
814	    +--:(eth)
815	       +--rw vlanid?   etht-types:vlanid

817	  augment /nw:networks/nw:network/nt:link/tet:te
818	          /tet:te-link-attributes/tet:label-restrictions
819	                  /tet:label-restriction/tet:label-step
820	                  /tet:technology:
821	    +--:(eth)
822	       +--rw eth-step?   uint16
823	  augment /nw:networks/nw:network/nt:link/tet:te
824	          /tet:information-source-entry
825	                  /tet:label-restrictions/tet:label-restriction:
826	    +--ro tag-type?   etht-types:eth-tag-type
827	    +--ro priority?   uint8
828	  augment /nw:networks/nw:network/nt:link/tet:te
829	          /tet:information-source-entry
830	                  /tet:label-restrictions/tet:label-restriction
831	                  /tet:label-start/tet:te-label/tet:technology:
832	    +--:(eth)
833	       +--ro vlanid?   etht-types:vlanid
834	  augment /nw:networks/nw:network/nt:link/tet:te
835	          /tet:information-source-entry
836	                  /tet:label-restrictions/tet:label-restriction
837	                  /tet:label-end/tet:te-label/tet:technology:
838	    +--:(eth)
839	       +--ro vlanid?   etht-types:vlanid
840	  augment /nw:networks/nw:network/nt:link/tet:te
841	          /tet:information-source-entry
842	                  /tet:label-restrictions/tet:label-restriction
843	                  /tet:label-step/tet:technology:
844	    +--:(eth)
845	       +--ro eth-step?   uint16
846	  augment /nw:networks/tet:te/tet:templates
847	          /tet:link-template/tet:te-link-attributes
848	                  /tet:underlay/tet:primary-path
849	                  /tet:path-element/tet:type/tet:label
850	                  /tet:label-hop/tet:te-label/tet:technology:
851	    +--:(eth)
852	       +--rw vlanid?   etht-types:vlanid
853	  augment /nw:networks/tet:te/tet:templates
854	          /tet:link-template/tet:te-link-attributes
855	                  /tet:underlay/tet:backup-path
856	                  /tet:path-element/tet:type/tet:label
857	                  /tet:label-hop/tet:te-label/tet:technology:
858	    +--:(eth)
859	       +--rw vlanid?   etht-types:vlanid
860	  augment /nw:networks/tet:te/tet:templates
861	          /tet:link-template/tet:te-link-attributes
862	                  /tet:label-restrictions
863	                  /tet:label-restriction:
864	    +--rw tag-type?   etht-types:eth-tag-type
865	    +--rw priority?   uint8
866	  augment /nw:networks/tet:te/tet:templates
867	          /tet:link-template/tet:te-link-attributes
868	                  /tet:label-restrictions
869	                  /tet:label-restriction/tet:label-start
870	                  /tet:te-label/tet:technology:
871	    +--:(eth)
872	       +--rw vlanid?   etht-types:vlanid
873	  augment /nw:networks/tet:te/tet:templates
874	          /tet:link-template/tet:te-link-attributes
875	                  /tet:label-restrictions
876	                  /tet:label-restriction/tet:label-end
877	                  /tet:te-label/tet:technology:
878	    +--:(eth)
879	       +--rw vlanid?   etht-types:vlanid
880	  augment /nw:networks/tet:te/tet:templates
881	          /tet:link-template/tet:te-link-attributes
882	                  /tet:label-restrictions
883	                  /tet:label-restriction/tet:label-step
884	                  /tet:technology:
885	    +--:(eth)
886	       +--rw eth-step?   uint16

888	4.  YANG Code for Topology Client Layer

890	4.1.  The ETH Topology YANG Code

892	<CODE BEGINS> file "ietf-eth-te-topology@2019-07-08.yang"
893	module ietf-eth-te-topology {

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

897	  prefix "ethtetopo";

899	  import ietf-network {
900	    prefix "nw";
901	  }

903	  import ietf-network-topology {
904	    prefix "nt";
905	  }

907	  import ietf-te-topology {
908	    prefix "tet";
909	  }
910	  import ietf-yang-types {
911	    prefix "yang";
912	  }

914	  import ietf-eth-tran-types {
915	    prefix "etht-types";
916	  }

918	  organization
919	    "Internet Engineering Task Force (IETF) CCAMP WG";
920	  contact
921	    "
922	      WG List: <mailto:ccamp@ietf.org>

924	      ID-draft editor:
925	        Haomian Zheng (zhenghaomian@huawei.com);
926	        Italo Busi (italo.busi@huawei.com);
927	        Aihua Guo (aihuaguo@huawei.com);
928	        Yunbin Xu (xuyunbin@ritt.cn);
929	        Yang Zhao (zhaoyangyjy@chinamobile.com);
930	        Xufeng Liu (Xufeng_Liu@jabil.com);
931	    ";

933	  description
934	    "This module defines a YANG data model for describing
935	     layer-2 Ethernet transport topologies.";

937	  revision 2019-07-08 {
938	    description
939	      "Initial Revision";
940	    reference
941	      "RFC XXXX: A YANG Data Model for Client-layer Topology";
942	    // RFC Ed.: replace XXXX with actual RFC number, update date
943	    // information and remove this note
944	  }

946	  /*
947	   * Groupings
948	   */

950	  grouping eth-tran-topology-type {
951	    description
952	      "Identifies the Ethernet Transport topology type";

954	    container eth-tran-topology {
955	      presence "indicates a topology type of
956	                Ethernet Transport Network.";
957	      description "Eth transport topology type";

959	    }
960	  }

962	  grouping ltp-bandwidth-profiles {
963	    description
964	      "A grouping which represents the bandwidt profile(s) for the ETH LTP.";

966	    choice direction {
967	      description
968	        "Whether the bandwidth profiles are symmetrical or
969	         asymmetrical";
970	      case symmetrical {
971	        description
972	          "The same bandwidth profile is used to describe the ingress
973	           and the egress bandwidth profile.";

975	        container ingress-egress-bandwidth-profile {
976	          description
977	            "The bandwith profile used in the ingress and egress direction.";
978	          uses etht-types:etht-bandwidth-profiles;
979	        }
980	      }
981	      case asymmetrical {
982	        description
983	          "Different ingress and egress bandwidth profiles
984	           can be specified.";
985	        container ingress-bandwidth-profile {
986	          description
987	            "The bandwidth profile used in the ingress direction.";
988	          uses etht-types:etht-bandwidth-profiles;
989	        }
990	        container egress-bandwidth-profile {
991	          description
992	            "The bandwidth profile used in the egress direction.";
993	          uses etht-types:etht-bandwidth-profiles;
994	        }
995	      }
996	    }
997	  }

999	  grouping eth-ltp-attributes {
1000	    description
1001	      "Ethernet transport link termination point attributes";

1003	    /*
1004	     * Open Issue: should we remove this attribute (duplicates with I2RS L2 attributes)?
1005	     */
1006	    leaf ltp-mac-address {
1007	      type yang:mac-address;
1008	      description "the MAC address of the LTP.";
1009	    }
1010	    /*
1011	     * Open Issue: should we remove this attribute (duplicates with I2RS L2 attributes)?
1012	     */
1013	    leaf port-vlan-id {
1014	      type etht-types:vlanid;
1015	      description "the port VLAN ID of the LTP.";
1016	    }
1017	    /*
1018	     * Open Issue: should we remove this attribute (duplicates with I2RS L2 attributes)?
1019	     */
1020	    leaf maximum-frame-size {
1021	      type uint16 {
1022	        range "64 .. 65535";
1023	      }
1024	      description
1025	        "Maximum frame size";
1026	    }
1027	      uses ltp-bandwidth-profiles;
1028	  }

1030	  grouping svc-vlan-classification {
1031	    description
1032	      "Grouping defining the capabilities for VLAN classification.";

1034	    leaf-list supported-tag-types {
1035	      type etht-types:eth-tag-classify;
1036	      description
1037	        "List of VLAN tag types that can be used for the VLAN classification.
1038	         In case VLAN classification is not supported, the list is empty.";
1039	    }
1040	    leaf vlan-bundling {
1041	      type boolean;
1042	      description
1043	        "In case VLAN classification is supported, indicates whether VLAN bundling classification is also supported.";
1044	    }
1045	    leaf vlan-range {
1046	      type etht-types:vid-range-type;
1047	      description
1048	        "In case VLAN classification is supported, indicates the of available VLAN ID values.";
1049	    }
1050	  }

1052	  grouping svc-vlan-push {
1053	    description
1054	      "Grouping defining the capabilities for VLAN push or swap operations.";

1056	    leaf-list supported-tag-types {
1057	      type etht-types:eth-tag-type;
1058	      description
1059	        "List of VLAN tag types that can be used to push or swap a VLAN tag.
1060	         In case VLAN push/swap is not supported, the list is empty.";
1061	    }
1062	    leaf vlan-range {
1063	      type etht-types:vid-range-type;
1064	      description
1065	        "In case VLAN push/swap operation is supported, the range of available VLAN ID values.";
1066	    }
1067	  }

1069	  grouping eth-ltp-svc-attributes {
1070	    description
1071	      "Ethernet link termination point (LTP) service attributes.";

1073	    container supported-classification {
1074	      description
1075	        "Service classification capabilities supported by the ETH LTP.";

1077	      leaf transparent{
1078	        type boolean;
1079	        description
1080	          "Indicates that the ETH LTP support transparent ETH client service.";
1081	      }
1082	      leaf port-classification {
1083	        type boolean;
1084	        description
1085	          "Indicates that the ETH LTP support port-based service classification.";
1086	      }
1087	      container vlan-classification {
1088	        description
1089	          "Service classification capabilities based on the VLAN tag(s)
1090	           supported by the ETH LTP.";

1092	        leaf vlan-tag-classification {
1093	          type boolean;
1094	          description
1095	            "Indicates that the ETH LTP supports VLAN service classification.";
1096	        }
1097	        container outer-tag {
1098	          description
1099	            "Service classification capabilities based on the outer VLAN tag,
1100	             supported by the ETH LTP.";
1101	          uses svc-vlan-classification;
1102	        }
1103	        container second-tag {
1104	          description
1105	            "Service classification capabilities based on the second VLAN tag,
1106	             supported by the ETH LTP.";
1107	          /*
1108	           * Open issue: indicates that second-tag-classification can be True only if
1109	           * outer-tag-classification is also True.
1110	           */
1111	          leaf second-tag-classification {
1112	            type boolean;
1113	            description
1114	              "Indicates that the ETH LTP support  VLAN service classification
1115	               based on the second VLAN tag.";
1116	          }
1117	          uses svc-vlan-classification;
1118	        }
1119	      }
1120	    }

1122	    container supported-vlan-operations {
1123	      description
1124	        "Reports the VLAN operations supported by the ETH LTP.";

1126	      leaf asymmetrical-operations {
1127	        type boolean;
1128	        description
1129	          "Indicates whether the ETH LTP supports also asymmetrical VLAN operations.
1130	           It is assumed that symmetrical VLAN operations are alwyas supported.";
1131	      }
1132	      leaf transparent-vlan-operations {
1133	        type boolean;
1134	        description
1135	          "Indicates that the ETH LTP supports transparent operations.";
1136	      }
1137	      container vlan-pop {
1138	        description
1139	          "Indicates VLAN pop or swap operations capabilities.";

1141	        leaf vlan-pop-operations {
1142	          type boolean;
1143	          description
1144	            "Indicates that the ETH LTP supports VLAN pop or swap operations.";
1145	        }
1146	        leaf max-pop-tags {
1147	          type uint8 {
1148	            range "1..2";
1149	          }
1150	          description
1151	            "Indicates the maximum number of tags that can be popped/swapped.";

1153	        }
1154	      }
1155	      container vlan-push {
1156	        description
1157	          "Indicates VLAN push or swap operations capabilities.";

1159	        leaf vlan-push-operation {
1160	          type boolean;
1161	          description
1162	            "Indicates that the ETH LTP supports VLAN push or swap operations.";
1163	        }
1164	        container outer-tag {
1165	          description
1166	            "Indicates the supported VLAN operation capabilities on the outer VLAN tag.";
1167	          uses svc-vlan-push;
1168	        }
1169	        container second-tag {
1170	          description
1171	            "Indicates the supported VLAN operation capabilities on the second VLAN tag.";

1173	          leaf push-second-tag {
1174	            type boolean;
1175	            description
1176	              "Indicates that the ETH LTP supports VLAN push or swap operations
1177	               for the second VLAN tag.";
1178	          }
1179	          uses svc-vlan-push;
1180	        }
1181	      }
1182	    }
1183	  }

1185	  /*
1186	   * Data nodes
1187	   */

1189	  augment "/nw:networks/nw:network/nw:network-types/tet:te-topology" {
1190	    description
1191	      "Augment network types to include ETH transport newtork";

1193	    uses eth-tran-topology-type;
1194	  }

1196	  augment "/nw:networks/nw:network/nw:node/nt:termination-point" {
1197	    when "../../nw:network-types/tet:te-topology/eth-tran-topology" {
1198	      description
1199	        "Augment only for ETH transport network";
1200	    }
1201	    description
1202	      "Augment ETH LTP attributes";

1204	    uses eth-ltp-attributes;

1206	    container eth-svc {
1207	      presence "client-facing LTP.";
1208	      description
1209	        "ETH LTP Service attributes.";

1211	      leaf client-facing {
1212	        type boolean;
1213	        default "false";
1214	        description
1215	          "Indicates whether this LTP is a client-facing LTP.";
1216	      }
1217	      uses eth-ltp-svc-attributes;
1218	    }
1219	  }

1221	  /*
1222	   * Augment TE bandwidth
1223	   */

1225	  /* Augment maximum LSP bandwidth of link terminationpoint (LTP) */
1226	  augment "/nw:networks/nw:network/nw:node/nt:termination-point/"
1227	        + "tet:te/"
1228	        + "tet:interface-switching-capability/tet:max-lsp-bandwidth/"
1229	        + "tet:te-bandwidth/tet:technology" {
1230	    when "../../../../../../nw:network-types/tet:te-topology/"
1231	       + "ethtetopo:eth-tran-topology" {
1232	      description "Ethernet TE bandwidth";
1233	    }
1234	    description "Ethernet bandwidth.";
1235	    case eth {
1236	      uses etht-types:eth-bandwidth;
1237	    }
1238	  }
1239	  /* Augment bandwidth path constraints of connectivity-matrices */
1240	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1241	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1242	        + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
1243	    when "../../../../../../nw:network-types/tet:te-topology/"
1244	       + "ethtetopo:eth-tran-topology" {
1245	      description "Ethernet TE bandwidth";
1246	    }
1247	    description "Ethernet bandwidth.";
1248	    case eth {
1249	      uses etht-types:eth-bandwidth;
1250	    }
1251	  }

1253	  /* Augment bandwidth path constraints of connectivity-matrix */
1254	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1255	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1256	        + "tet:connectivity-matrix/"
1257	        + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
1258	    when "../../../../../../../nw:network-types/tet:te-topology/"
1259	       + "ethtetopo:eth-tran-topology" {
1260	      description "Ethernet TE bandwidth";
1261	    }
1262	    description "Ethernet bandwidth.";
1263	    case eth {
1264	      uses etht-types:eth-bandwidth;
1265	    }
1266	  }

1268	  /* Augment bandwidth path constraints of connectivity-matrices information-source */
1269	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1270	        + "tet:information-source-entry/tet:connectivity-matrices/"
1271	        + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
1272	    when "../../../../../../nw:network-types/tet:te-topology/"
1273	       + "ethtetopo:eth-tran-topology" {
1274	      description "Ethernet TE bandwidth";
1275	    }
1276	    description "Ethernet bandwidth.";
1277	    case eth {
1278	      uses etht-types:eth-bandwidth;
1279	    }
1280	  }

1282	  /* Augment bandwidth path constraints of connectivity-matrix information-source */
1283	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1284	        + "tet:information-source-entry/tet:connectivity-matrices/"
1285	        + "tet:connectivity-matrix/"
1286	        + "tet:path-constraints/tet:te-bandwidth/tet:technology" {
1287	    when "../../../../../../../nw:network-types/tet:te-topology/"
1288	       + "ethtetopo:eth-tran-topology" {
1289	      description "Ethernet TE bandwidth";
1290	    }
1291	    description "Ethernet bandwidth.";
1292	    case eth {
1293	      uses etht-types:eth-bandwidth;
1294	    }
1295	  }
1296	  /* Augment client bandwidth of tunnel termination point (TTP) */
1297	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1298	        + "tet:tunnel-termination-point/"
1299	        + "tet:client-layer-adaptation/tet:switching-capability/"
1300	        + "tet:te-bandwidth/tet:technology" {
1301	    when "../../../../../../nw:network-types/tet:te-topology/"
1302	       + "ethtetopo:eth-tran-topology" {
1303	      description "Ethernet TE bandwidth";
1304	    }
1305	    description "Ethernet bandwidth.";
1306	    case eth {
1307	      uses etht-types:eth-bandwidth;
1308	    }
1309	  }

1311	  /* Augment bandwidth path constraints of local-link-connectivities */
1312	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1313	        + "tet:tunnel-termination-point/"
1314	        + "tet:local-link-connectivities/tet:path-constraints/"
1315	        + "tet:te-bandwidth/tet:technology" {
1316	    when "../../../../../../nw:network-types/tet:te-topology/"
1317	       + "ethtetopo:eth-tran-topology" {
1318	      description "Ethernet TE bandwidth";
1319	    }
1320	    description "Ethernet bandwidth.";
1321	    case eth {
1322	      uses etht-types:eth-bandwidth;
1323	    }
1324	  }

1326	  /* Augment bandwidth path constraints of local-link-connectivity (LLC) */
1327	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1328	        + "tet:tunnel-termination-point/"
1329	        + "tet:local-link-connectivities/"
1330	        + "tet:local-link-connectivity/tet:path-constraints/"
1331	        + "tet:te-bandwidth/tet:technology" {
1332	    when "../../../../../../../nw:network-types/tet:te-topology/"
1333	       + "ethtetopo:eth-tran-topology" {
1334	      description "Ethernet TE bandwidth";
1335	    }
1336	    description "Ethernet bandwidth.";
1337	    case eth {
1338	      uses etht-types:eth-bandwidth;
1339	    }
1340	  }

1342	  /* Augment maximum LSP bandwidth of TE link */
1343	  augment "/nw:networks/nw:network/nt:link/tet:te/"
1344	        + "tet:te-link-attributes/"
1345	        + "tet:interface-switching-capability/tet:max-lsp-bandwidth/"
1346	        + "tet:te-bandwidth/tet:technology" {
1347	    when "../../../../../../nw:network-types/tet:te-topology/"
1348	       + "ethtetopo:eth-tran-topology" {
1349	      description "Ethernet TE bandwidth";
1350	    }
1351	    description "Ethernet bandwidth.";
1352	    case eth {
1353	      uses etht-types:eth-bandwidth;
1354	    }
1355	  }

1357	  /* Augment maximum bandwidth of TE link */
1358	  augment "/nw:networks/nw:network/nt:link/tet:te/"
1359	        + "tet:te-link-attributes/"
1360	        + "tet:max-link-bandwidth/"
1361	        + "tet:te-bandwidth/tet:technology" {
1362	    when "../../../../../nw:network-types/tet:te-topology/"
1363	       + "ethtetopo:eth-tran-topology" {
1364	      description "Ethernet TE bandwidth";
1365	    }
1366	    description "Ethernet bandwidth.";
1367	    case eth {
1368	      uses etht-types:eth-bandwidth;
1369	    }
1370	  }

1372	  /* Augment maximum reservable bandwidth of TE link */
1373	  augment "/nw:networks/nw:network/nt:link/tet:te/"
1374	        + "tet:te-link-attributes/"
1375	        + "tet:max-resv-link-bandwidth/"
1376	        + "tet:te-bandwidth/tet:technology" {
1377	    when "../../../../../nw:network-types/tet:te-topology/"
1378	       + "ethtetopo:eth-tran-topology" {
1379	      description "Ethernet TE bandwidth";
1380	    }
1381	    description "Ethernet bandwidth.";
1382	    case eth {
1383	      uses etht-types:eth-bandwidth;
1384	    }
1385	  }

1387	  /* Augment unreserved bandwidth of TE Link */
1388	  augment "/nw:networks/nw:network/nt:link/tet:te/"
1389	        + "tet:te-link-attributes/"
1390	        + "tet:unreserved-bandwidth/"
1391	        + "tet:te-bandwidth/tet:technology" {

1393	    when "../../../../../nw:network-types/tet:te-topology/"
1394	       + "ethtetopo:eth-tran-topology" {
1395	      description "Ethernet TE bandwidth";
1396	    }
1397	    description "Ethernet bandwidth.";
1398	    case eth {
1399	      uses etht-types:eth-bandwidth;
1400	    }
1401	  }
1402	  /* Augment maximum LSP bandwidth of TE link information-source */
1403	  augment "/nw:networks/nw:network/nt:link/tet:te/"
1404	        + "tet:information-source-entry/"
1405	        + "tet:interface-switching-capability/"
1406	        + "tet:max-lsp-bandwidth/"
1407	        + "tet:te-bandwidth/tet:technology" {
1408	    when "../../../../../../nw:network-types/tet:te-topology/"
1409	       + "ethtetopo:eth-tran-topology" {
1410	      description "Ethernet TE bandwidth";
1411	    }
1412	    description "Ethernet bandwidth.";
1413	    case eth {
1414	      uses etht-types:eth-bandwidth;
1415	    }
1416	  }

1418	  /* Augment maximum bandwidth of TE link information-source */
1419	  augment "/nw:networks/nw:network/nt:link/tet:te/"
1420	        + "tet:information-source-entry/"
1421	        + "tet:max-link-bandwidth/"
1422	        + "tet:te-bandwidth/tet:technology" {
1423	    when "../../../../../nw:network-types/tet:te-topology/"
1424	       + "ethtetopo:eth-tran-topology" {
1425	      description "Ethernet TE bandwidth";
1426	    }
1427	    description "Ethernet bandwidth.";
1428	    case eth {
1429	      uses etht-types:eth-bandwidth;
1430	    }
1431	  }

1433	  /* Augment maximum reservable bandwidth of TE link information-source */
1434	  augment "/nw:networks/nw:network/nt:link/tet:te/"
1435	        + "tet:information-source-entry/"
1436	        + "tet:max-resv-link-bandwidth/"
1437	        + "tet:te-bandwidth/tet:technology" {
1438	    when "../../../../../nw:network-types/tet:te-topology/"
1439	       + "ethtetopo:eth-tran-topology" {
1440	      description "Ethernet TE bandwidth";

1442	    }
1443	    description "Ethernet bandwidth.";
1444	    case eth {
1445	      uses etht-types:eth-bandwidth;
1446	    }
1447	  }

1449	  /* Augment unreserved bandwidth of TE link information-source */
1450	  augment "/nw:networks/nw:network/nt:link/tet:te/"
1451	        + "tet:information-source-entry/"
1452	        + "tet:unreserved-bandwidth/"
1453	        + "tet:te-bandwidth/tet:technology" {
1454	    when "../../../../../nw:network-types/tet:te-topology/"
1455	       + "ethtetopo:eth-tran-topology" {
1456	      description "Ethernet TE bandwidth";
1457	    }
1458	    description "Ethernet bandwidth.";
1459	    case eth {
1460	      uses etht-types:eth-bandwidth;
1461	    }
1462	  }

1464	  /* Augment maximum LSP bandwidth of TE link template */
1465	  augment "/nw:networks/tet:te/tet:templates/"
1466	        + "tet:link-template/tet:te-link-attributes/"
1467	        + "tet:interface-switching-capability/"
1468	        + "tet:max-lsp-bandwidth/"
1469	        + "tet:te-bandwidth/tet:technology" {
1470	/*
1471	    when "../../../../../../nw:network-types/tet:te-topology/"
1472	       + "ethtetopo:eth-tran-topology" {
1473	      description "Ethernet TE bandwidth";
1474	    }
1475	*/
1476	    description "Ethernet bandwidth.";
1477	    case eth {
1478	      uses etht-types:eth-bandwidth;
1479	    }
1480	  }

1482	  /* Augment maximum bandwidth of TE link template */
1483	  augment "/nw:networks/tet:te/tet:templates/"
1484	        + "tet:link-template/tet:te-link-attributes/"
1485	        + "tet:max-link-bandwidth/"
1486	        + "tet:te-bandwidth/tet:technology" {
1487	/*
1488	    when "../../../../../nw:network-types/tet:te-topology/"
1489	        + "ethtetopo:eth-tran-topology" {

1491	      description "Ethernet TE bandwidth";
1492	    }
1493	*/
1494	    description "Ethernet bandwidth.";
1495	    case eth {
1496	      uses etht-types:eth-bandwidth;
1497	    }
1498	  }

1500	  /* Augment maximum reservable bandwidth of TE link template */
1501	  augment "/nw:networks/tet:te/tet:templates/"
1502	        + "tet:link-template/tet:te-link-attributes/"
1503	        + "tet:max-resv-link-bandwidth/"
1504	        + "tet:te-bandwidth/tet:technology" {
1505	/*
1506	    when "../../../../../nw:network-types/tet:te-topology/"
1507	        + "ethtetopo:eth-tran-topology" {
1508	      description "Ethernet TE bandwidth";
1509	    }
1510	*/
1511	    description "Ethernet bandwidth.";
1512	    case eth {
1513	      uses etht-types:eth-bandwidth;
1514	    }
1515	  }

1517	  /* Augment unreserved bandwidth of TE link template */
1518	  augment "/nw:networks/tet:te/tet:templates/"
1519	        + "tet:link-template/tet:te-link-attributes/"
1520	        + "tet:unreserved-bandwidth/"
1521	        + "tet:te-bandwidth/tet:technology" {
1522	/*
1523	    when "../../../../../../nw:network-types/tet:te-topology/"
1524	        + "ethtetopo:eth-tran-topology" {
1525	      description "Ethernet TE bandwidth";
1526	    }
1527	*/
1528	    description "Ethernet bandwidth.";
1529	    case eth {
1530	      uses etht-types:eth-bandwidth;
1531	    }
1532	  }

1534	  /*
1535	   * Augment TE label.
1536	   */

1538	  /* Augment label restrictions of connectivity-matrices */
1539	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1540	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1541	        + "tet:label-restrictions/tet:label-restriction" {
1542	    when "../../../../../../nw:network-types/tet:te-topology/"
1543	       + "ethtetopo:eth-tran-topology" {
1544	      description "Ethernet TE label";
1545	    }
1546	    description "Ethernet label restriction.";
1547	    uses etht-types:eth-label-restriction;
1548	  }

1550	  /* Augment label restrictions start of connectivity-matrices */
1551	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1552	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1553	        + "tet:label-restrictions/tet:label-restriction/tet:label-start/"
1554	        + "tet:te-label/tet:technology" {
1555	    when "../../../../../../../../nw:network-types/tet:te-topology/"
1556	       + "ethtetopo:eth-tran-topology" {
1557	      description "Ethernet TE label";
1558	    }
1559	    description "Ethernet label.";
1560	    case eth {
1561	      uses etht-types:eth-label;
1562	    }
1563	  }

1565	  /* Augment label restrictions end of connectivity-matrices */
1566	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1567	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1568	        + "tet:label-restrictions/tet:label-restriction/tet:label-end/"
1569	        + "tet:te-label/tet:technology" {
1570	    when "../../../../../../../../nw:network-types/tet:te-topology/"
1571	       + "ethtetopo:eth-tran-topology" {
1572	      description "Ethernet TE label";
1573	    }
1574	    description "Ethernet label.";
1575	    case eth {
1576	      uses etht-types:eth-label;
1577	    }
1578	  }

1580	  /* Augment label restrictions step of connectivity-matrices */
1581	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1582	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1583	        + "tet:label-restrictions/tet:label-restriction/tet:label-step/"
1584	        + "tet:technology" {
1585	    when "../../../../../../../nw:network-types/tet:te-topology/"
1586	       + "ethtetopo:eth-tran-topology" {

1588	      description "Ethernet TE label";
1589	    }
1590	    description "Ethernet label.";
1591	    case eth {
1592	      uses etht-types:eth-label-step;
1593	    }
1594	  }

1596	  /* Augment label hop of underlay primary path of connectivity-matrices */
1597	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1598	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1599	        + "tet:underlay/tet:primary-path/tet:path-element/"
1600	        + "tet:type/tet:label/tet:label-hop/"
1601	        + "tet:te-label/tet:technology" {
1602	    when "../../../../../../../../../"
1603	       + "nw:network-types/tet:te-topology/"
1604	       + "ethtetopo:eth-tran-topology" {
1605	      description "Ethernet TE label";
1606	    }
1607	    description "Ethernet label.";
1608	    case eth {
1609	      uses etht-types:eth-label;
1610	    }
1611	  }
1612	  /* Augment label hop of underlay backup path of connectivity-matrices */
1613	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1614	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1615	        + "tet:underlay/tet:backup-path/tet:path-element/"
1616	        + "tet:type/tet:label/tet:label-hop/"
1617	        + "tet:te-label/tet:technology" {
1618	    when "../../../../../../../../../"
1619	       + "nw:network-types/tet:te-topology/"
1620	       + "ethtetopo:eth-tran-topology" {
1621	      description "Ethernet TE label";
1622	    }
1623	    description "Ethernet label.";
1624	    case eth {
1625	      uses etht-types:eth-label;
1626	    }
1627	  }

1629	  /* Augment label hop of route-exclude of connectivity-matrices */
1630	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1631	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1632	        + "tet:optimizations/tet:algorithm/tet:metric/"
1633	        + "tet:optimization-metric/"
1634	        + "tet:explicit-route-exclude-objects/"
1635	        + "tet:route-object-exclude-object/"
1636	        + "tet:type/tet:label/tet:label-hop/"
1637	        + "tet:te-label/tet:technology" {
1638	    when "../../../../../../../../../../"
1639	       + "nw:network-types/tet:te-topology/"
1640	       + "ethtetopo:eth-tran-topology" {
1641	      description "Ethernet TE label";
1642	    }
1643	    description "Ethernet label.";
1644	    case eth {
1645	      uses etht-types:eth-label;
1646	    }
1647	  }

1649	  /* Augment label hop of route-include of connectivity-matrices (added) */
1650	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1651	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1652	        + "tet:optimizations/tet:algorithm/tet:metric/"
1653	        + "tet:optimization-metric/"
1654	        + "tet:explicit-route-include-objects/"
1655	        + "tet:route-object-include-object/"
1656	        + "tet:type/tet:label/tet:label-hop/"
1657	        + "tet:te-label/tet:technology" {
1658	    when "../../../../../../../../../../"
1659	       + "nw:network-types/tet:te-topology/"
1660	       + "ethtetopo:eth-tran-topology" {
1661	      description "Ethernet TE label";
1662	    }
1663	    description "Ethernet label.";
1664	    case eth {
1665	      uses etht-types:eth-label;
1666	    }
1667	  }

1669	  /* Augment label hop of path-route of connectivity-matrices */
1670	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1671	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1672	        + "tet:path-properties/tet:path-route-objects/"
1673	        + "tet:path-route-object/tet:type/tet:label/tet:label-hop/"
1674	        + "tet:te-label/tet:technology"{
1675	    when "../../../../../../../../../"
1676	       + "nw:network-types/tet:te-topology/"
1677	       + "ethtetopo:eth-tran-topology" {
1678	      description "Ethernet TE label";
1679	    }
1680	    description "Ethernet label.";
1681	    case eth {
1682	      uses etht-types:eth-label;
1683	    }

1685	  }

1687	  /* Augment ingress label restrictions of connectivity-matrix */
1688	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1689	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1690	        + "tet:connectivity-matrix/tet:from/"
1691	        + "tet:label-restrictions/tet:label-restriction" {
1692	    when "../../../../../../../../nw:network-types/tet:te-topology/"
1693	       + "ethtetopo:eth-tran-topology" {
1694	      description "Ethernet TE label";
1695	    }
1696	    description "Ethernet label.";
1697	    uses etht-types:eth-label-restriction;
1698	  }

1700	  /* Augment ingress label restrictions start of connectivity-matrix */
1701	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1702	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1703	        + "tet:connectivity-matrix/tet:from/"
1704	        + "tet:label-restrictions/tet:label-restriction/tet:label-start/"
1705	        + "tet:te-label/tet:technology" {
1706	    when "../../../../../../../../../../"
1707	       + "nw:network-types/tet:te-topology/"
1708	       + "ethtetopo:eth-tran-topology" {
1709	      description "Ethernet TE label";
1710	    }
1711	    description "Ethernet label.";
1712	    case eth {
1713	      uses etht-types:eth-label;
1714	    }
1715	  }

1717	  /* Augment ingress label restrictions end of connectivity-matrix */
1718	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1719	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1720	        + "tet:connectivity-matrix/tet:from/"
1721	        + "tet:label-restrictions/tet:label-restriction/tet:label-end/"
1722	        + "tet:te-label/tet:technology" {
1723	    when "../../../../../../../../../../"
1724	       + "nw:network-types/tet:te-topology/"
1725	       + "ethtetopo:eth-tran-topology" {
1726	      description "Ethernet TE label";
1727	    }
1728	    description "Ethernet label.";
1729	    case eth {
1730	      uses etht-types:eth-label;
1731	    }
1732	  }
1733	  /* Augment ingress label restrictions step of connectivity-matrix */
1734	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1735	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1736	        + "tet:connectivity-matrix/tet:from/"
1737	        + "tet:label-restrictions/tet:label-restriction/tet:label-step/"
1738	        + "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-step;
1747	    }
1748	  }

1750	  /* Augment egress label restrictions of connectivity-matrix */
1751	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1752	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1753	        + "tet:connectivity-matrix/tet:to/"
1754	        + "tet:label-restrictions/tet:label-restriction" {
1755	    when "../../../../../../../../nw:network-types/tet:te-topology/"
1756	       + "ethtetopo:eth-tran-topology" {
1757	      description "Ethernet TE label";
1758	    }
1759	    description "Ethernet label.";
1760	    uses etht-types:eth-label-restriction;
1761	  }

1763	  /* Augment egress label restrictions start of connectivity-matrix */
1764	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1765	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1766	        + "tet:connectivity-matrix/tet:to/"
1767	        + "tet:label-restrictions/tet:label-restriction/tet:label-start/"
1768	        + "tet:te-label/tet:technology" {
1769	    when "../../../../../../../../../../"
1770	       + "nw:network-types/tet:te-topology/"
1771	       + "ethtetopo:eth-tran-topology" {
1772	      description "Ethernet TE label";
1773	    }
1774	    description "Ethernet label.";
1775	    case eth {
1776	      uses etht-types:eth-label;
1777	    }
1778	  }

1780	  /* Augment egress label restrictions end of connectivity-matrix */
1781	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1782	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1783	        + "tet:connectivity-matrix/tet:to/"
1784	        + "tet:label-restrictions/tet:label-restriction/tet:label-end/"
1785	        + "tet:te-label/tet:technology" {
1786	    when "../../../../../../../../../../"
1787	       + "nw:network-types/tet:te-topology/"
1788	       + "ethtetopo:eth-tran-topology" {
1789	      description "Ethernet TE label";
1790	    }
1791	    description "Ethernet label.";
1792	    case eth {
1793	      uses etht-types:eth-label;
1794	    }
1795	  }

1797	  /* Augment egress label restrictions step of connectivity-matrix */
1798	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1799	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1800	        + "tet:connectivity-matrix/tet:to/"
1801	        + "tet:label-restrictions/tet:label-restriction/tet:label-step/"
1802	        + "tet:technology" {
1803	    when "../../../../../../../../../"
1804	       + "nw:network-types/tet:te-topology/"
1805	       + "ethtetopo:eth-tran-topology" {
1806	      description "Ethernet TE label";
1807	    }
1808	    description "Ethernet label.";
1809	    case eth {
1810	      uses etht-types:eth-label-step;
1811	    }
1812	  }

1814	  /* Augment label hop of underlay primary path of connectivity-matrix */
1815	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1816	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1817	        + "tet:connectivity-matrix/"
1818	        + "tet:underlay/tet:primary-path/tet:path-element/"
1819	        + "tet:type/tet:label/tet:label-hop/"
1820	        + "tet:te-label/tet:technology" {
1821	    when "../../../../../../../../../../"
1822	       + "nw:network-types/tet:te-topology/"
1823	       + "ethtetopo:eth-tran-topology" {
1824	      description "Ethernet TE label";
1825	    }
1826	    description "Ethernet label.";
1827	    case eth {
1828	      uses etht-types:eth-label;

1830	    }
1831	  }

1833	  /* Augment label hop of underlay backup path of connectivity-matrix */
1834	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1835	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1836	        + "tet:connectivity-matrix/"
1837	        + "tet:underlay/tet:backup-path/tet:path-element/"
1838	        + "tet:type/tet:label/tet:label-hop/"
1839	        + "tet:te-label/tet:technology" {
1840	    when "../../../../../../../../../../"
1841	       + "nw:network-types/tet:te-topology/"
1842	       + "ethtetopo:eth-tran-topology" {
1843	      description "Ethernet TE label";
1844	    }
1845	    description "Ethernet label.";
1846	    case eth {
1847	      uses etht-types:eth-label;
1848	    }
1849	  }

1851	  /* Augment label hop of route-exclude of connectivity-matrix */
1852	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1853	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1854	        + "tet:connectivity-matrix/tet:optimizations/"
1855	        + "tet:algorithm/tet:metric/tet:optimization-metric/"
1856	        + "tet:explicit-route-exclude-objects/"
1857	        + "tet:route-object-exclude-object/tet:type/"
1858	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
1859	    when "../../../../../../../../../../../"
1860	       + "nw:network-types/tet:te-topology/"
1861	       + "ethtetopo:eth-tran-topology" {
1862	      description "Ethernet TE label";
1863	    }
1864	    description "Ethernet label.";
1865	    case eth {
1866	      uses etht-types:eth-label;
1867	    }
1868	  }

1870	  /* Augment label hop of route-include of connectivity-matrix */
1871	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1872	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1873	        + "tet:connectivity-matrix/tet:optimizations/"
1874	        + "tet:algorithm/tet:metric/tet:optimization-metric/"
1875	        + "tet:explicit-route-include-objects/"
1876	        + "tet:route-object-include-object/tet:type/"
1877	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {

1879	    when "../../../../../../../../../../../"
1880	       + "nw:network-types/tet:te-topology/"
1881	       + "ethtetopo:eth-tran-topology" {
1882	      description "Ethernet TE label";
1883	    }
1884	    description "Ethernet label.";
1885	    case eth {
1886	      uses etht-types:eth-label;
1887	    }
1888	  }

1890	  /* Augment label hop of path-route of connectivity-matrix */
1891	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1892	        + "tet:te-node-attributes/tet:connectivity-matrices/"
1893	        + "tet:connectivity-matrix/"
1894	        + "tet:path-properties/tet:path-route-objects/"
1895	        + "tet:path-route-object/tet:type/"
1896	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
1897	    when "../../../../../../../../../../"
1898	       + "nw:network-types/tet:te-topology/"
1899	       + "ethtetopo:eth-tran-topology" {
1900	      description "Ethernet TE label";
1901	    }
1902	    description "Ethernet label.";
1903	    case eth {
1904	      uses etht-types:eth-label;
1905	    }
1906	  }

1908	  /* Augment label restrictions of connectivity-matrices information-source */
1909	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1910	        + "tet:information-source-entry/"
1911	        + "tet:connectivity-matrices/tet:label-restrictions/tet:label-restriction" {
1912	    when "../../../../../../nw:network-types/tet:te-topology/"
1913	       + "ethtetopo:eth-tran-topology" {
1914	      description "Ethernet TE label";
1915	    }
1916	    description "Ethernet label.";
1917	    uses etht-types:eth-label-restriction;
1918	  }

1920	  /* Augment label restrictions start of connectivity-matrices information-source */
1921	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1922	        + "tet:information-source-entry/"
1923	        + "tet:connectivity-matrices/tet:label-restrictions/tet:label-restriction/"
1924	        + "tet:label-start/tet:te-label/tet:technology" {
1925	    when "../../../../../../../../"
1926	       + "nw:network-types/tet:te-topology/"
1927	       + "ethtetopo:eth-tran-topology" {
1928	      description "Ethernet TE label";
1929	    }
1930	    description "Ethernet label.";
1931	    case eth {
1932	      uses etht-types:eth-label;
1933	    }
1934	  }

1936	  /* Augment label restrictions end of connectivity-matrices information-source */
1937	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1938	        + "tet:information-source-entry/"
1939	        + "tet:connectivity-matrices/tet:label-restrictions/tet:label-restriction/"
1940	        + "tet:label-end/tet:te-label/tet:technology" {
1941	    when "../../../../../../../../"
1942	       + "nw:network-types/tet:te-topology/"
1943	       + "ethtetopo:eth-tran-topology" {
1944	      description "Ethernet TE label";
1945	    }
1946	    description "Ethernet label.";
1947	    case eth {
1948	      uses etht-types:eth-label;
1949	    }
1950	  }

1952	  /* Augment label restrictions step of connectivity-matrices information-source */
1953	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1954	        + "tet:information-source-entry/"
1955	        + "tet:connectivity-matrices/tet:label-restrictions/tet:label-restriction/"
1956	        + "tet:label-step/tet:technology" {
1957	    when "../../../../../../../"
1958	       + "nw:network-types/tet:te-topology/"
1959	       + "ethtetopo:eth-tran-topology" {
1960	      description "Ethernet TE label";
1961	    }
1962	    description "Ethernet label.";
1963	    case eth {
1964	      uses etht-types:eth-label-step;
1965	    }
1966	  }

1968	  /* Augment label hop of underlay primary path of connectivity-matrices information-source */
1969	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1970	        + "tet:information-source-entry/tet:connectivity-matrices/"
1971	        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
1972	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
1973	    when "../../../../../../../../../"
1974	       + "nw:network-types/tet:te-topology/"
1975	       + "ethtetopo:eth-tran-topology" {
1976	      description "Ethernet TE label";
1977	    }
1978	    description "Ethernet label.";
1979	    case eth {
1980	      uses etht-types:eth-label;
1981	    }
1982	  }

1984	  /* Augment label hop of underlay backup path of connectivity-matrices information-source */
1985	  augment "/nw:networks/nw:network/nw:node/tet:te/"
1986	        + "tet:information-source-entry/tet:connectivity-matrices/"
1987	        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
1988	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
1989	    when "../../../../../../../../../"
1990	       + "nw:network-types/tet:te-topology/"
1991	       + "ethtetopo:eth-tran-topology" {
1992	      description "Ethernet TE label";
1993	    }
1994	    description "Ethernet label.";
1995	    case eth {
1996	      uses etht-types:eth-label;
1997	    }
1998	  }

2000	  /* Augment label hop of route-exclude of connectivity-matrices information-source */
2001	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2002	        + "tet:information-source-entry/tet:connectivity-matrices/"
2003	        + "tet:optimizations/tet:algorithm/tet:metric/"
2004	        + "tet:optimization-metric/"
2005	        + "tet:explicit-route-exclude-objects/"
2006	        + "tet:route-object-exclude-object/tet:type/"
2007	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2008	    when "../../../../../../../../../../"
2009	       + "nw:network-types/tet:te-topology/"
2010	       + "ethtetopo:eth-tran-topology" {
2011	      description "Ethernet TE label";
2012	    }
2013	    description "Ethernet label.";
2014	    case eth {
2015	      uses etht-types:eth-label;
2016	    }
2017	  }

2019	  /* Augment label hop of route-include of connectivity-matrices information-source */
2020	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2021	        + "tet:information-source-entry/tet:connectivity-matrices/"
2022	        + "tet:optimizations/tet:algorithm/tet:metric/"
2023	        + "tet:optimization-metric/"
2024	        + "tet:explicit-route-include-objects/"
2025	        + "tet:route-object-include-object/tet:type/"
2026	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2027	    when "../../../../../../../../../../"
2028	       + "nw:network-types/tet:te-topology/"
2029	       + "ethtetopo:eth-tran-topology" {
2030	      description "Ethernet TE label";
2031	    }
2032	    description "Ethernet label.";
2033	    case eth {
2034	      uses etht-types:eth-label;
2035	    }
2036	  }

2038	  /* Augment label hop of path-route of connectivity-matrices information-source */
2039	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2040	        + "tet:information-source-entry/tet:connectivity-matrices/"
2041	        + "tet:path-properties/tet:path-route-objects/"
2042	        + "tet:path-route-object/tet:type/"
2043	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2044	    when "../../../../../../../../../"
2045	       + "nw:network-types/tet:te-topology/"
2046	       + "ethtetopo:eth-tran-topology" {
2047	      description "Ethernet TE label";
2048	    }
2049	    description "Ethernet label.";
2050	    case eth {
2051	      uses etht-types:eth-label;
2052	    }
2053	  }

2055	  /* Augment ingress label restrictions of connectivity-matrix information-source */
2056	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2057	        + "tet:information-source-entry/tet:connectivity-matrices/"
2058	        + "tet:connectivity-matrix/"
2059	        + "tet:from/tet:label-restrictions/tet:label-restriction" {
2060	    when "../../../../../../../../nw:network-types/tet:te-topology/"
2061	       + "ethtetopo:eth-tran-topology" {
2062	      description "Ethernet TE label";
2063	    }
2064	    description "Ethernet label.";
2065	    uses etht-types:eth-label-restriction;
2066	  }

2068	  /* Augment ingress label restrictions start of connectivity-matrix information-source */
2069	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2070	        + "tet:information-source-entry/tet:connectivity-matrices/"
2071	        + "tet:connectivity-matrix/"
2072	        + "tet:from/tet:label-restrictions/tet:label-restriction/"
2073	        + "tet:label-start/tet:te-label/tet:technology" {
2074	    when "../../../../../../../../../../"
2075	       + "nw:network-types/tet:te-topology/"
2076	       + "ethtetopo:eth-tran-topology" {
2077	      description "Ethernet TE label";
2078	    }
2079	    description "Ethernet label.";
2080	    case eth {
2081	      uses etht-types:eth-label;
2082	    }
2083	  }

2085	  /* Augment ingress label restrictions end of connectivity-matrix information-source */
2086	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2087	        + "tet:information-source-entry/tet:connectivity-matrices/"
2088	        + "tet:connectivity-matrix/"
2089	        + "tet:from/tet:label-restrictions/tet:label-restriction/"
2090	        + "tet:label-end/tet:te-label/tet:technology" {
2091	    when "../../../../../../../../../../"
2092	       + "nw:network-types/tet:te-topology/"
2093	       + "ethtetopo:eth-tran-topology" {
2094	      description "Ethernet TE label";
2095	    }
2096	    description "Ethernet label.";
2097	    case eth {
2098	      uses etht-types:eth-label;
2099	    }
2100	  }

2102	  /* Augment ingress label restrictions step of connectivity-matrix information-source */
2103	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2104	        + "tet:information-source-entry/tet:connectivity-matrices/"
2105	        + "tet:connectivity-matrix/"
2106	        + "tet:from/tet:label-restrictions/tet:label-restriction/"
2107	        + "tet:label-step/tet:technology" {
2108	    when "../../../../../../../../../"
2109	       + "nw:network-types/tet:te-topology/"
2110	       + "ethtetopo:eth-tran-topology" {
2111	      description "Ethernet TE label";
2112	    }
2113	    description "Ethernet label.";
2114	    case eth {
2115	      uses etht-types:eth-label-step;
2116	    }
2117	  }
2118	  /* Augment egress label restrictions of connectivity-matrix information-source */
2119	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2120	        + "tet:information-source-entry/tet:connectivity-matrices/"
2121	        + "tet:connectivity-matrix/"
2122	        + "tet:to/tet:label-restrictions/tet:label-restriction" {
2123	    when "../../../../../../../../nw:network-types/tet:te-topology/"
2124	       + "ethtetopo:eth-tran-topology" {
2125	      description "Ethernet TE label";
2126	    }
2127	    description "Ethernet label.";
2128	    uses etht-types:eth-label-restriction;
2129	  }

2131	  /* Augment egress label restrictions start of connectivity-matrix information-source */
2132	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2133	        + "tet:information-source-entry/tet:connectivity-matrices/"
2134	        + "tet:connectivity-matrix/"
2135	        + "tet:to/tet:label-restrictions/tet:label-restriction/"
2136	        + "tet:label-start/tet:te-label/tet:technology" {
2137	    when "../../../../../../../../../../"
2138	       + "nw:network-types/tet:te-topology/"
2139	       + "ethtetopo:eth-tran-topology" {
2140	      description "Ethernet TE label";
2141	    }
2142	    description "Ethernet label.";
2143	    case eth {
2144	      uses etht-types:eth-label;
2145	    }
2146	  }

2148	  /* Augment egress label restrictions end of connectivity-matrix information-source */
2149	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2150	        + "tet:information-source-entry/tet:connectivity-matrices/"
2151	        + "tet:connectivity-matrix/"
2152	        + "tet:to/tet:label-restrictions/tet:label-restriction/"
2153	        + "tet:label-end/tet:te-label/tet:technology" {
2154	    when "../../../../../../../../../../"
2155	       + "nw:network-types/tet:te-topology/"
2156	       + "ethtetopo:eth-tran-topology" {
2157	      description "Ethernet TE label";
2158	    }
2159	    description "Ethernet label.";
2160	    case eth {
2161	      uses etht-types:eth-label;
2162	    }
2163	  }

2165	  /* Augment egress label restrictions step of connectivity-matrix information-source */
2166	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2167	        + "tet:information-source-entry/tet:connectivity-matrices/"
2168	        + "tet:connectivity-matrix/"
2169	        + "tet:to/tet:label-restrictions/tet:label-restriction/"
2170	        + "tet:label-step/tet:technology" {
2171	    when "../../../../../../../../../"
2172	       + "nw:network-types/tet:te-topology/"
2173	       + "ethtetopo:eth-tran-topology" {
2174	      description "Ethernet TE label";
2175	    }
2176	    description "Ethernet label.";
2177	    case eth {
2178	      uses etht-types:eth-label-step;
2179	    }
2180	  }

2182	  /* Augment label hop of underlay primary path of connectivity-matrix information-source */
2183	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2184	        + "tet:information-source-entry/tet:connectivity-matrices/"
2185	        + "tet:connectivity-matrix/"
2186	        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2187	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2188	    when "../../../../../../../../../../"
2189	       + "nw:network-types/tet:te-topology/"
2190	       + "ethtetopo:eth-tran-topology" {
2191	      description "Ethernet TE label";
2192	    }
2193	    description "Ethernet label.";
2194	    case eth {
2195	      uses etht-types:eth-label;
2196	    }
2197	  }

2199	  /* Augment label hop of underlay backup path of connectivity-matrix information-source */
2200	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2201	        + "tet:information-source-entry/tet:connectivity-matrices/"
2202	        + "tet:connectivity-matrix/"
2203	        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2204	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2205	    when "../../../../../../../../../../"
2206	       + "nw:network-types/tet:te-topology/"
2207	       + "ethtetopo:eth-tran-topology" {
2208	      description "Ethernet TE label";
2209	    }
2210	    description "Ethernet label.";
2211	    case eth {
2212	      uses etht-types:eth-label;
2213	    }

2215	  }

2217	  /* Augment label hop of route-exclude of connectivity-matrix information-source */
2218	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2219	        + "tet:information-source-entry/tet:connectivity-matrices/"
2220	        + "tet:connectivity-matrix/"
2221	        + "tet:optimizations/tet:algorithm/tet:metric/"
2222	        + "tet:optimization-metric/"
2223	        + "tet:explicit-route-exclude-objects/"
2224	        + "tet:route-object-exclude-object/tet:type/"
2225	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2226	    when "../../../../../../../../../../../"
2227	       + "nw:network-types/tet:te-topology/"
2228	       + "ethtetopo:eth-tran-topology" {
2229	      description "Ethernet TE label";
2230	    }
2231	    description "Ethernet label.";
2232	    case eth {
2233	      uses etht-types:eth-label;
2234	    }
2235	  }

2237	  /* Augment label hop of route-include of connectivity-matrix information-source */
2238	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2239	        + "tet:information-source-entry/tet:connectivity-matrices/"
2240	        + "tet:connectivity-matrix/"
2241	        + "tet:optimizations/tet:algorithm/tet:metric/"
2242	        + "tet:optimization-metric/"
2243	        + "tet:explicit-route-include-objects/"
2244	        + "tet:route-object-include-object/tet:type/"
2245	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2246	    when "../../../../../../../../../../../"
2247	       + "nw:network-types/tet:te-topology/"
2248	       + "ethtetopo:eth-tran-topology" {
2249	      description "Ethernet TE label";
2250	    }
2251	    description "Ethernet label.";
2252	    case eth {
2253	      uses etht-types:eth-label;
2254	    }
2255	  }

2257	  /* Augment label hop of path-route of connectivity-matrix information-source */
2258	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2259	        + "tet:information-source-entry/tet:connectivity-matrices/"
2260	        + "tet:connectivity-matrix/"
2261	        + "tet:path-properties/tet:path-route-objects/"
2262	        + "tet:path-route-object/tet:type/"
2263	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2264	    when "../../../../../../../../../../"
2265	       + "nw:network-types/tet:te-topology/"
2266	       + "ethtetopo:eth-tran-topology" {
2267	      description "Ethernet TE label";
2268	    }
2269	    description "Ethernet label.";
2270	    case eth {
2271	      uses etht-types:eth-label;
2272	    }
2273	  }
2274	  /* Augment label restrictions of local-link-connectivities */
2275	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2276	        + "tet:tunnel-termination-point/"
2277	        + "tet:local-link-connectivities/"
2278	        + "tet:label-restrictions/tet:label-restriction" {
2279	    when "../../../../../../nw:network-types/tet:te-topology/"
2280	       + "ethtetopo:eth-tran-topology" {
2281	      description "Ethernet TE label";
2282	    }
2283	    description "Ethernet label.";
2284	    uses etht-types:eth-label-restriction;
2285	  }

2287	  /* Augment label restrictions start of local-link-connectivities */
2288	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2289	        + "tet:tunnel-termination-point/"
2290	        + "tet:local-link-connectivities/"
2291	        + "tet:label-restrictions/tet:label-restriction/tet:label-start/"
2292	        + "tet:te-label/tet:technology" {
2293	    when "../../../../../../../../nw:network-types/tet:te-topology/"
2294	       + "ethtetopo:eth-tran-topology" {
2295	      description "Ethernet TE label";
2296	    }
2297	    description "Ethernet label.";
2298	    case eth {
2299	      uses etht-types:eth-label;
2300	    }
2301	  }

2303	  /* Augment label restrictions end of local-link-connectivities */
2304	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2305	        + "tet:tunnel-termination-point/"
2306	        + "tet:local-link-connectivities/"
2307	        + "tet:label-restrictions/tet:label-restriction/tet:label-end/"
2308	        + "tet:te-label/tet:technology"{
2309	    when "../../../../../../../../nw:network-types/tet:te-topology/"
2310	       + "ethtetopo:eth-tran-topology" {

2312	      description "Ethernet TE label";
2313	    }
2314	    description "Ethernet label.";
2315	    case eth {
2316	      uses etht-types:eth-label;
2317	    }
2318	  }

2320	  /* Augment label restrictions step of local-link-connectivities */
2321	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2322	        + "tet:tunnel-termination-point/"
2323	        + "tet:local-link-connectivities/"
2324	        + "tet:label-restrictions/tet:label-restriction/tet:label-step/"
2325	        + "tet:technology"{
2326	    when "../../../../../../../nw:network-types/tet:te-topology/"
2327	       + "ethtetopo:eth-tran-topology" {
2328	      description "Ethernet TE label";
2329	    }
2330	    description "Ethernet label.";
2331	    case eth {
2332	      uses etht-types:eth-label-step;
2333	    }
2334	  }

2336	  /* Augment label hop of underlay primary path of local-link-connectivities */
2337	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2338	        + "tet:tunnel-termination-point/"
2339	        + "tet:local-link-connectivities/"
2340	        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2341	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2342	    when "../../../../../../../../../"
2343	       + "nw:network-types/tet:te-topology/"
2344	       + "ethtetopo:eth-tran-topology" {
2345	      description "Ethernet TE label";
2346	    }
2347	    description "Ethernet label.";
2348	    case eth {
2349	      uses etht-types:eth-label;
2350	    }
2351	  }

2353	  /* Augment label hop of underlay backup path of local-link-connectivities */
2354	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2355	        + "tet:tunnel-termination-point/"
2356	        + "tet:local-link-connectivities/"
2357	        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2358	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2359	    when "../../../../../../../../../"
2360	       + "nw:network-types/tet:te-topology/"
2361	       + "ethtetopo:eth-tran-topology" {
2362	      description "Ethernet TE label";
2363	    }
2364	    description "Ethernet label.";
2365	    case eth {
2366	      uses etht-types:eth-label;
2367	    }
2368	  }

2370	  /* Augment label hop of route-exclude of local-link-connectivities */
2371	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2372	        + "tet:tunnel-termination-point/"
2373	        + "tet:local-link-connectivities/"
2374	        + "tet:optimizations/tet:algorithm/tet:metric/"
2375	        + "tet:optimization-metric/"
2376	        + "tet:explicit-route-exclude-objects/"
2377	        + "tet:route-object-exclude-object/tet:type/"
2378	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2379	    when "../../../../../../../../../../"
2380	       + "nw:network-types/tet:te-topology/"
2381	       + "ethtetopo:eth-tran-topology" {
2382	      description "Ethernet TE label";
2383	    }
2384	    description "Ethernet label.";
2385	    case eth {
2386	      uses etht-types:eth-label;
2387	    }
2388	  }

2390	  /* Augment label hop of route-include of local-link-connectivities */
2391	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2392	        + "tet:tunnel-termination-point/"
2393	        + "tet:local-link-connectivities/"
2394	        + "tet:optimizations/tet:algorithm/tet:metric/"
2395	        + "tet:optimization-metric/"
2396	        + "tet:explicit-route-include-objects/"
2397	        + "tet:route-object-include-object/tet:type/"
2398	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2399	    when "../../../../../../../../../../"
2400	       + "nw:network-types/tet:te-topology/"
2401	       + "ethtetopo:eth-tran-topology" {
2402	      description "Ethernet TE label";
2403	    }
2404	    description "Ethernet label.";
2405	    case eth {
2406	      uses etht-types:eth-label;
2407	    }

2409	  }

2411	  /* Augment label hop of path-route of local-link-connectivities */
2412	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2413	        + "tet:tunnel-termination-point/"
2414	        + "tet:local-link-connectivities/"
2415	        + "tet:path-properties/tet:path-route-objects/"
2416	        + "tet:path-route-object/tet:type/"
2417	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2418	    when "../../../../../../../../../"
2419	       + "nw:network-types/tet:te-topology/"
2420	       + "ethtetopo:eth-tran-topology" {
2421	      description "Ethernet TE label";
2422	    }
2423	    description "Ethernet label.";
2424	    case eth {
2425	      uses etht-types:eth-label;
2426	    }
2427	  }

2429	  /* Augment label restrictions of local-link-connectivity (LLC) */
2430	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2431	        + "tet:tunnel-termination-point/"
2432	        + "tet:local-link-connectivities/"
2433	        + "tet:local-link-connectivity/"
2434	        + "tet:label-restrictions/tet:label-restriction" {
2435	    when "../../../../../../../nw:network-types/tet:te-topology/"
2436	       + "ethtetopo:eth-tran-topology" {
2437	      description "Ethernet TE label";
2438	    }
2439	    description "Ethernet label.";
2440	    uses etht-types:eth-label-restriction;
2441	  }

2443	  /* Augment label restrictions start of local-link-connectivity (LLC) */
2444	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2445	        + "tet:tunnel-termination-point/"
2446	        + "tet:local-link-connectivities/"
2447	        + "tet:local-link-connectivity/"
2448	        + "tet:label-restrictions/tet:label-restriction/"
2449	        + "tet:label-start/tet:te-label/tet:technology" {
2450	    when "../../../../../../../../../"
2451	       + "nw:network-types/tet:te-topology/"
2452	       + "ethtetopo:eth-tran-topology" {
2453	      description "Ethernet TE label";
2454	    }
2455	    description "Ethernet label.";
2456	    case eth {
2457	      uses etht-types:eth-label;
2458	    }
2459	  }

2461	  /* Augment label restrictions end of local-link-connectivity (LLC) */
2462	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2463	        + "tet:tunnel-termination-point/"
2464	        + "tet:local-link-connectivities/"
2465	        + "tet:local-link-connectivity/"
2466	        + "tet:label-restrictions/tet:label-restriction/"
2467	        + "tet:label-end/tet:te-label/tet:technology" {
2468	    when "../../../../../../../../../"
2469	       + "nw:network-types/tet:te-topology/"
2470	       + "ethtetopo:eth-tran-topology" {
2471	      description "Ethernet TE label";
2472	    }
2473	    description "Ethernet label.";
2474	    case eth {
2475	      uses etht-types:eth-label;
2476	    }
2477	  }

2479	  /* Augment label restrictions step of local-link-connectivity (LLC) */
2480	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2481	        + "tet:tunnel-termination-point/"
2482	        + "tet:local-link-connectivities/"
2483	        + "tet:local-link-connectivity/"
2484	        + "tet:label-restrictions/tet:label-restriction/"
2485	        + "tet:label-step/tet:technology" {
2486	    when "../../../../../../../../"
2487	       + "nw:network-types/tet:te-topology/"
2488	       + "ethtetopo:eth-tran-topology" {
2489	      description "Ethernet TE label";
2490	    }
2491	    description "Ethernet label.";
2492	    case eth {
2493	      uses etht-types:eth-label-step;
2494	    }
2495	  }

2497	  /* Augment label hop of underlay primary path of local-link-connectivity (LLC) */
2498	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2499	        + "tet:tunnel-termination-point/"
2500	        + "tet:local-link-connectivities/"
2501	        + "tet:local-link-connectivity/"
2502	        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2503	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2504	    when "../../../../../../../../../../"
2505	       + "nw:network-types/tet:te-topology/"
2506	       + "ethtetopo:eth-tran-topology" {
2507	      description "Ethernet TE label";
2508	    }
2509	    description "Ethernet label.";
2510	    case eth {
2511	      uses etht-types:eth-label;
2512	    }
2513	  }

2515	  /* Augment label hop of underlay backup path of local-link-connectivity (LLC) */
2516	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2517	        + "tet:tunnel-termination-point/"
2518	        + "tet:local-link-connectivities/"
2519	        + "tet:local-link-connectivity/"
2520	        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2521	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2522	    when "../../../../../../../../../../"
2523	       + "nw:network-types/tet:te-topology/"
2524	       + "ethtetopo:eth-tran-topology" {
2525	      description "Ethernet TE label";
2526	    }
2527	    description "Ethernet label.";
2528	    case eth {
2529	      uses etht-types:eth-label;
2530	    }
2531	  }

2533	  /* Augment label hop of route-exclude of local-link-connectivity (LLC) */
2534	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2535	        + "tet:tunnel-termination-point/"
2536	        + "tet:local-link-connectivities/"
2537	        + "tet:local-link-connectivity/"
2538	        + "tet:optimizations/tet:algorithm/tet:metric/"
2539	        + "tet:optimization-metric/"
2540	        + "tet:explicit-route-exclude-objects/"
2541	        + "tet:route-object-exclude-object/tet:type/"
2542	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2543	    when "../../../../../../../../../../../"
2544	       + "nw:network-types/tet:te-topology/"
2545	       + "ethtetopo:eth-tran-topology" {
2546	      description "Ethernet TE label";
2547	    }
2548	    description "Ethernet label.";
2549	    case eth {
2550	      uses etht-types:eth-label;
2551	    }
2552	  }
2553	  /* Augment label hop of route-include of local-link-connectivity (LLC) */
2554	  augment "/nw:networks/nw:network/nw:node/tet:te/"
2555	        + "tet:tunnel-termination-point/"
2556	        + "tet:local-link-connectivities/"
2557	        + "tet:local-link-connectivity/"
2558	        + "tet:optimizations/tet:algorithm/tet:metric/"
2559	        + "tet:optimization-metric/"
2560	        + "tet:explicit-route-include-objects/"
2561	        + "tet:route-object-include-object/tet:type/"
2562	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2563	    when "../../../../../../../../../../../"
2564	       + "nw:network-types/tet:te-topology/"
2565	       + "ethtetopo:eth-tran-topology" {
2566	      description "Ethernet TE label";
2567	    }
2568	    description "Ethernet label.";
2569	    case eth {
2570	      uses etht-types:eth-label;
2571	    }
2572	  }

2574	  /* Augment label hop of path-route of local-link-connectivity (LLC) */
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:path-properties/tet:path-route-objects/"
2580	        + "tet:path-route-object/tet:type/"
2581	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2582	    when "../../../../../../../../../../"
2583	       + "nw:network-types/tet:te-topology/"
2584	       + "ethtetopo:eth-tran-topology" {
2585	      description "Ethernet TE label";
2586	    }
2587	    description "Ethernet label.";
2588	    case eth {
2589	      uses etht-types:eth-label;
2590	    }
2591	  }

2593	  /* Augment label hop of underlay primary path of TE link */
2594	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2595	        + "tet:te-link-attributes/"
2596	        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2597	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2598	    when "../../../../../../../../"
2599	       + "nw:network-types/tet:te-topology/"
2600	       + "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 hop of underlay backup path of TE link */
2611	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2612	        + "tet:te-link-attributes/"
2613	        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2614	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2615	    when "../../../../../../../../"
2616	       + "nw:network-types/tet:te-topology/"
2617	       + "ethtetopo:eth-tran-topology" {
2618	      description "Ethernet TE label";
2619	    }
2620	    description "Ethernet label.";
2621	    case eth {
2622	      uses etht-types:eth-label;
2623	    }
2624	  }

2626	  /* Augment label restrictions of TE link */
2627	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2628	        + "tet:te-link-attributes/"
2629	        + "tet:label-restrictions/tet:label-restriction" {
2630	    when "../../../../../nw:network-types/tet:te-topology/"
2631	       + "ethtetopo:eth-tran-topology" {
2632	      description "Ethernet TE label";
2633	    }
2634	    description "Ethernet label.";
2635	    uses etht-types:eth-label-restriction;
2636	  }

2638	  /* Augment label restrictions start of TE link */
2639	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2640	        + "tet:te-link-attributes/"
2641	        + "tet:label-restrictions/tet:label-restriction/"
2642	        + "tet:label-start/tet:te-label/tet:technology" {
2643	    when "../../../../../../../nw:network-types/tet:te-topology/"
2644	       + "ethtetopo:eth-tran-topology" {
2645	      description "Ethernet TE label";
2646	    }
2647	    description "Ethernet label.";
2648	    case eth {
2649	      uses etht-types:eth-label;

2651	    }
2652	  }

2654	  /* Augment label restrictions end of TE link */
2655	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2656	        + "tet:te-link-attributes/"
2657	        + "tet:label-restrictions/tet:label-restriction/"
2658	        + "tet:label-end/tet:te-label/tet:technology" {
2659	    when "../../../../../../../nw:network-types/tet:te-topology/"
2660	       + "ethtetopo:eth-tran-topology" {
2661	      description "Ethernet TE label";
2662	    }
2663	    description "Ethernet label.";
2664	    case eth {
2665	      uses etht-types:eth-label;
2666	    }
2667	  }

2669	  /* Augment label restrictions step of TE link */
2670	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2671	        + "tet:te-link-attributes/"
2672	        + "tet:label-restrictions/tet:label-restriction/"
2673	        + "tet:label-step/tet:technology" {
2674	    when "../../../../../../nw:network-types/tet:te-topology/"
2675	       + "ethtetopo:eth-tran-topology" {
2676	      description "Ethernet TE label";
2677	    }
2678	    description "Ethernet label.";
2679	    case eth {
2680	      uses etht-types:eth-label-step;
2681	    }
2682	  }

2684	  /* Augment label restrictions of TE link information-source */
2685	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2686	        + "tet:information-source-entry/"
2687	        + "tet:label-restrictions/tet:label-restriction" {
2688	    when "../../../../../nw:network-types/tet:te-topology/"
2689	       + "ethtetopo:eth-tran-topology" {
2690	      description "Ethernet TE label";
2691	    }
2692	    description "Ethernet label.";
2693	    uses etht-types:eth-label-restriction;
2694	  }

2696	  /* Augment label restrictions start of TE link information-source */
2697	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2698	        + "tet:information-source-entry/"
2699	        + "tet:label-restrictions/tet:label-restriction/"
2700	        + "tet:label-start/tet:te-label/tet:technology" {
2701	    when "../../../../../../../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	  }
2710	  /* Augment label restrictions end of TE link information-source */
2711	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2712	        + "tet:information-source-entry/"
2713	        + "tet:label-restrictions/tet:label-restriction/"
2714	        + "tet:label-end/tet:te-label/tet:technology" {
2715	    when "../../../../../../../nw:network-types/tet:te-topology/"
2716	       + "ethtetopo:eth-tran-topology" {
2717	      description "Ethernet TE label";
2718	    }
2719	    description "Ethernet label.";
2720	    case eth {
2721	      uses etht-types:eth-label;
2722	    }
2723	  }

2725	  /* Augment label restrictions step of TE link information-source */
2726	  augment "/nw:networks/nw:network/nt:link/tet:te/"
2727	        + "tet:information-source-entry/"
2728	        + "tet:label-restrictions/tet:label-restriction/"
2729	        + "tet:label-step/tet:technology" {
2730	    when "../../../../../../nw:network-types/tet:te-topology/"
2731	       + "ethtetopo:eth-tran-topology" {
2732	      description "Ethernet TE label";
2733	    }
2734	    description "Ethernet label.";
2735	    case eth {
2736	      uses etht-types:eth-label-step;
2737	    }
2738	  }

2740	  /* Augment label hop of underlay primary path of TE link template */
2741	  augment "/nw:networks/tet:te/tet:templates/"
2742	        + "tet:link-template/tet:te-link-attributes/"
2743	        + "tet:underlay/tet:primary-path/tet:path-element/tet:type/"
2744	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2745	/*
2746	    when "../../../../../../../../../../"
2747	       + "nw:network-types/tet:te-topology/"
2748	       + "ethtetopo:eth-tran-topology" {
2749	      description "Ethernet TE label";
2750	    }
2751	*/
2752	    description "Ethernet label.";
2753	    case eth {
2754	      uses etht-types:eth-label;
2755	    }
2756	  }

2758	  /* Augment label hop of underlay backup path of TE link template */
2759	  augment "/nw:networks/tet:te/tet:templates/"
2760	        + "tet:link-template/tet:te-link-attributes/"
2761	        + "tet:underlay/tet:backup-path/tet:path-element/tet:type/"
2762	        + "tet:label/tet:label-hop/tet:te-label/tet:technology" {
2763	/*
2764	    when "../../../../../../../../../../nw:network-types/tet:te-topology/"
2765	        + "ethtetopo:eth-tran-topology" {
2766	      description "Ethernet TE label";
2767	    }
2768	*/
2769	    description "Ethernet label.";
2770	    case eth {
2771	      uses etht-types:eth-label;
2772	    }
2773	  }

2775	  /* Augment label restrictions of TE link template */
2776	  augment "/nw:networks/tet:te/tet:templates/"
2777	        + "tet:link-template/tet:te-link-attributes/"
2778	        + "tet:label-restrictions/tet:label-restriction" {
2779	/*
2780	    when "../../../../../nw:network-types/tet:te-topology/"
2781	        + "ethtetopo:eth-tran-topology" {
2782	      description "Ethernet TE label";
2783	    }
2784	*/
2785	    description "Ethernet label.";
2786	    uses etht-types:eth-label-restriction;
2787	  }

2789	  /* Augment label restrictions start of TE link template */
2790	  augment "/nw:networks/tet:te/tet:templates/"
2791	        + "tet:link-template/tet:te-link-attributes/"
2792	        + "tet:label-restrictions/tet:label-restriction/"
2793	        + "tet:label-start/tet:te-label/tet:technology" {
2794	/*
2795	    when "../../../../../../../nw:network-types/tet:te-topology/"
2796	        + "ethtetopo:eth-tran-topology" {
2797	      description "Ethernet TE label";
2798	    }
2799	*/
2800	    description "Ethernet label.";
2801	    case eth {
2802	      uses etht-types:eth-label;
2803	    }
2804	  }

2806	  /* Augment label restrictions end of TE link template */
2807	  augment "/nw:networks/tet:te/tet:templates/"
2808	        + "tet:link-template/tet:te-link-attributes/"
2809	        + "tet:label-restrictions/tet:label-restriction/"
2810	        + "tet:label-end/tet:te-label/tet:technology" {
2811	/*
2812	    when "../../../../../../../nw:network-types/tet:te-topology/"
2813	        + "ethtetopo:eth-tran-topology" {
2814	      description "Ethernet TE label";
2815	    }
2816	*/
2817	    description "Ethernet label.";
2818	    case eth {
2819	      uses etht-types:eth-label;
2820	    }
2821	  }

2823	  /* Augment label restrictions step of TE link template */
2824	  augment "/nw:networks/tet:te/tet:templates/"
2825	        + "tet:link-template/tet:te-link-attributes/"
2826	        + "tet:label-restrictions/tet:label-restriction/"
2827	        + "tet:label-step/tet:technology" {
2828	/*
2829	    when "../../../../../../nw:network-types/tet:te-topology/"
2830	        + "ethtetopo:eth-tran-topology" {
2831	      description "Ethernet TE label";
2832	    }
2833	*/
2834	    description "Ethernet label.";
2835	    case eth {
2836	      uses etht-types:eth-label-step;
2837	    }
2838	  }

2840	}

2842	<CODE ENDS>
2843	5.  Considerations and Open Issue

2845	   Editor Notes: This section is used to note temporary discussion/
2846	   conclusion that to be fixed in the future version, and will be
2847	   removed before publication.  201902: we have noticed that Ethernet is
2848	   the only client signal (on the perspective of OTN) which need a
2849	   topology.  So it is possible that the title of this document will be
2850	   changed to "A YANG Data Model for Ethernet Topology".  The proposal
2851	   of this work is that the document will follow up the progress of
2852	   draft-zheng-ccamp-client-signal-yang, with draft-zheng-ccamp-client-
2853	   tunnel-yang together.  (solved in -06) 201902: will have to align
2854	   with TE topology model, currently is a totally different format with
2855	   necessary parameters, a big change is expected.  (solved in -06.)

2857	6.  IANA Considerations

2859	   TBD.

2861	7.  Manageability Considerations

2863	   TBD.

2865	8.  Security Considerations

2867	   The data following the model defined in this document is exchanged
2868	   via, for example, the interface between an orchestrator and a
2869	   transport network controller.  The security concerns mentioned in
2870	   [I-D.ietf-teas-yang-te-topo] for using ietf-te-topology.yang model
2871	   also applies to this document.

2873	   The YANG module defined in this document can be accessed via the
2874	   RESTCONF protocol defined in [RFC8040], or maybe via the NETCONF
2875	   protocol [RFC6241].

2877	   There are a number of data nodes defined in the YANG module which are
2878	   writable/creatable/deletable (i.e., config true, which is the
2879	   default).  These data nodes may be considered sensitive or vulnerable
2880	   in some network environments.  Write operations (e.g., POST) to these
2881	   data nodes without proper protection can have a negative effect on
2882	   network operations.

2884	   Editors note: to list specific subtrees and data nodes and their
2885	   sensitivity/vulnerability.

2887	9.  Acknowledgements

2889	   We would like to thank Igor Bryskin and Daniel King for their
2890	   comments and discussions.

2892	10.  Contributors

2894	   Yanlei Zheng
2895	   China Unicom
2896	   Email: zhengyl@dimpt.com

2898	   Zhe Liu
2899	   Huawei Technologies,
2900	   Email: liuzhe123@huawei.com

2902	   Zheyu Fan
2903	   Huawei Technologies,
2904	   Email: fanzheyu2@huawei.com

2906	   Sergio Belotti
2907	   Nokia,
2908	   Email: sergio.belotti@nokia.com

2910	   Yingxi Yao
2911	   Shanghai Bell,
2912	   yingxi.yao@nokia-sbell.com

2914	   Giuseppe Fioccola
2915	   Huawei Technologies
2916	   giuseppe.fioccola@huawei.com

2918	11.  References

2920	11.1.  Normative References

2922	   [I-D.ietf-ccamp-otn-topo-yang]
2923	              Zheng, H., Guo, A., Busi, I., Sharma, A., Liu, X.,
2924	              Belotti, S., Xu, Y., Wang, L., and O. Dios, "A YANG Data
2925	              Model for Optical Transport Network Topology", draft-ietf-
2926	              ccamp-otn-topo-yang-07 (work in progress), July 2019.

2928	   [I-D.ietf-teas-yang-te-topo]
2929	              Liu, X., Bryskin, I., Beeram, V., Saad, T., Shah, H., and
2930	              O. Dios, "YANG Data Model for Traffic Engineering (TE)
2931	              Topologies", draft-ietf-teas-yang-te-topo-22 (work in
2932	              progress), June 2019.

2934	   [RFC6241]  Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
2935	              and A. Bierman, Ed., "Network Configuration Protocol
2936	              (NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
2937	              <https://www.rfc-editor.org/info/rfc6241>.

2939	   [RFC7950]  Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
2940	              RFC 7950, DOI 10.17487/RFC7950, August 2016,
2941	              <https://www.rfc-editor.org/info/rfc7950>.

2943	   [RFC8040]  Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
2944	              Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
2945	              <https://www.rfc-editor.org/info/rfc8040>.

2947	11.2.  Informative References

2949	   [I-D.ietf-ccamp-wson-yang]
2950	              Lee, Y., Dhody, D., Guo, A., Lopezalvarez, V., and D.
2951	              King, "A YANG Data Model for WSON (Wavelength Switched
2952	              Optical Networks)", draft-ietf-ccamp-wson-yang-22 (work in
2953	              progress), July 2019.

2955	   [RFC8340]  Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams",
2956	              BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018,
2957	              <https://www.rfc-editor.org/info/rfc8340>.

2959	Authors' Addresses

2961	   Haomian Zheng
2962	   Huawei Technologies
2963	   H1-1-A043S Huawei Industrial Base, Songshanhu
2964	   Dongguan, Guangdong  523808
2965	   China

2967	   Email: zhenghaomian@huawei.com

2969	   Aihua Guo
2970	   Huawei Technologies

2972	   Email: aihuaguo@huawei.com

2974	   Italo Busi
2975	   Huawei Technologies

2977	   Email: Italo.Busi@huawei.com
2978	   Yunbin Xu
2979	   CAICT

2981	   Email: xuyunbin@ritt.cn

2983	   Yang Zhao
2984	   China Mobile

2986	   Email: zhaoyangyjy@chinamobile.com

2988	   Xufeng Liu
2989	   Volta Networks

2991	   Email: xufeng.liu.ietf@gmail.com