ISIS Working Group S. Litkowski Internet-Draft Orange Intended status: Standards Track D. Yeung Expires: April 10, 2015 A. Lindem Cisco Systems J. Zhang Juniper Networks L. Lhotka October 07, 2014 YANG Data Model for ISIS protocol draft-ietf-isis-yang-isis-cfg-00 Abstract This document defines a YANG data model that can be used to configure and manage ISIS protocol. Requirements Language The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on April 10, 2015. Copyright Notice Copyright (c) 2014 IETF Trust and the persons identified as the document authors. All rights reserved. Litkowski, et al. Expires April 10, 2015 [Page 1] Internet-Draft isis-cfg October 2014 This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1. Tree diagram . . . . . . . . . . . . . . . . . . . . . . 2 2. Design of the Data Model . . . . . . . . . . . . . . . . . . 3 2.1. ISIS Configuration . . . . . . . . . . . . . . . . . . . 8 2.2. Multitopology Parameters . . . . . . . . . . . . . . . . 8 2.3. Per-Level Parameters . . . . . . . . . . . . . . . . . . 8 2.4. Per-Interface Parameters . . . . . . . . . . . . . . . . 9 2.5. Operational State . . . . . . . . . . . . . . . . . . . . 10 3. RPC Operations . . . . . . . . . . . . . . . . . . . . . . . 11 4. Notifications . . . . . . . . . . . . . . . . . . . . . . . . 11 5. Interaction with Other YANG Modules . . . . . . . . . . . . . 16 6. YANG Module . . . . . . . . . . . . . . . . . . . . . . . . . 16 7. Security Considerations . . . . . . . . . . . . . . . . . . . 78 8. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 79 9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 79 10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 79 11. Normative References . . . . . . . . . . . . . . . . . . . . 79 Appendix A. Example: NETCONF Reply . . . . . . . . . . . . 80 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 80 1. Introduction This document defines a YANG data model for ISIS routing protocol. The data model covers configuration of an ISIS routing protocol instance as well as operational states. 1.1. Tree diagram A simplified graphical representation of the data model is presented in Section 2. The meaning of the symbols in these diagrams is as follows: o Brackets "[" and "]" enclose list keys. Litkowski, et al. Expires April 10, 2015 [Page 2] Internet-Draft isis-cfg October 2014 o Curly braces "{" and "}" contain names of optional features that make the corresponding node conditional. o Abbreviations before data node names: "rw" means configuration (read-write), and "ro" state data (read-only). o Symbols after data node names: "?" means an optional node and "*" denotes a "list" or "leaf-list". o Parentheses enclose choice and case nodes, and case nodes are also marked with a colon (":"). o Ellipsis ("...") stands for contents of subtrees that are not shown. 2. Design of the Data Model The ISIS YANG module is divided in two main containers "isis" that are augmenting the "routing-protocol" lists in ietf-routing module with specific ISIS parameters. One container contains the writable parameters, while the other contains the operational states. The figure below describe the overall structure of the isis YANG module: module: ietf-isis augment /rt:routing-state/rt:ribs/rt:rib/rt:routes/rt:route: +--ro metric? uint32 +--ro tag* uint64 +--ro route-type? enumeration augment /rt:active-route/rt:output/rt:route: +--ro metric? uint32 +--ro tag* uint64 +--ro route-type? enumeration augment /rt:routing/rt:routing-instance/rt:routing-protocols/rt:routing-protocol: +--rw isis +--rw instance* [routing-instance] +--rw routing-instance rt:routing-instance-ref +--rw level? level +--rw system-id? system-id +--rw maximum-area-addresses? uint8 {maximum-area-addresses}? +--rw area-address* area-address +--rw ipv4-router-id? inet:ipv4-address +--rw ipv6-router-id? inet:ipv6-address +--rw reference-bandwidth? uint32 {reference-bandwidth}? +--rw lsp-mtu? uint16 Litkowski, et al. Expires April 10, 2015 [Page 3] Internet-Draft isis-cfg October 2014 +--rw lsp-lifetime? uint16 +--rw lsp-refresh? uint16 {lsp-refresh}? +--rw lsp-gen-interval-exp-delay* [level] {lsp-gen-interval-exp-delay}? | +--rw initial? uint16 | +--rw incremental? uint16 | +--rw maximum? uint8 | +--rw level level +--rw graceful-restart {graceful-restart}? | +--rw restart-duration? uint16 | +--rw helper-disable? empty | +--rw enabled? boolean +--rw psnp-authentication* [level] | +--rw value? boolean | +--rw level level +--rw csnp-authentication* [level] | +--rw value? boolean | +--rw level level +--rw authentication-key* [level] | +--rw value? string | +--rw level level +--rw authentication-type* [level] | +--rw value? authentication-type | +--rw level level +--rw metric-type* [level] | +--rw value? enumeration | +--rw level level +--rw preference* [level] | +--rw value? uint8 | +--rw level level +--rw external-preference* [level] | +--rw value? uint8 | +--rw level level +--rw default-metric* [level] | +--rw value? wide-metric | +--rw level level +--rw af* [af] {nlpid-control}? | +--rw af string | +--rw enabled? boolean | +--rw default-metric* [level] | +--rw value? wide-metric | +--rw level level +--rw topologies* [name] {multi-topology}? | +--rw enabled? boolean | +--rw name rt:rib-ref +--rw overload* [level] | +--rw status? boolean | +--rw type? enumeration | +--rw timeout? uint16 Litkowski, et al. Expires April 10, 2015 [Page 4] Internet-Draft isis-cfg October 2014 | +--rw level level +--rw interfaces +--rw interface* [name] ... augment /rt:routing-state/rt:routing-instance/rt:routing-protocols/rt:routing-protocol: +--ro isis +--ro system-counters | +--ro level* [level] | +--ro level level-number | +--ro corrupted-lsps? uint32 | +--ro authentication-type-fails? uint32 | +--ro authentication-fails? uint32 | +--ro database-overload? uint32 | +--ro own-lsp-purge? uint32 | +--ro manual-address-drop-from-area? uint32 | +--ro max-sequence? uint32 | +--ro sequence-number-skipped? uint32 | +--ro id-len-mismatch? uint32 | +--ro partition-changes? uint32 | +--ro lsp-errors? uint32 | +--ro spf-runs? uint32 +--ro interface-counters | +--ro interface* [interface] | +--ro interface string | +--ro adjacency-changes? uint32 | +--ro adjacency-number? uint32 | +--ro init-fails? uint32 | +--ro adjacency-rejects? uint32 | +--ro id-len-mismatch? uint32 | +--ro max-area-addresses-mismatch? uint32 | +--ro authentication-type-fails? uint32 | +--ro authentication-fails? uint32 | +--ro lan-dis-changes? uint32 +--ro packet-counters | +--ro level* [level] | +--ro level level-number | +--ro iih | | +--ro in? uint32 | | +--ro out? uint32 | +--ro ish | | +--ro in? uint32 | | +--ro out? uint32 | +--ro esh | | +--ro in? uint32 | | +--ro out? uint32 | +--ro lsp | | +--ro in? uint32 | | +--ro out? uint32 Litkowski, et al. Expires April 10, 2015 [Page 5] Internet-Draft isis-cfg October 2014 | +--ro psnp | | +--ro in? uint32 | | +--ro out? uint32 | +--ro csnp | | +--ro in? uint32 | | +--ro out? uint32 | +--ro unknown | +--ro in? uint32 | +--ro out? uint32 +--ro interfaces | +--ro interfaces* [interface] | +--ro interface string | +--ro circuit-id? circuit-id | +--ro admin-state? admin-state | +--ro oper-state? oper-state | +--ro interface-type? interface-type | +--ro level? level | +--ro passive? empty | +--ro three-way-handshake? empty +--ro adjacencies | +--ro adjacency* | +--ro interface? string | +--ro level? level | +--ro neighbor-sysid? system-id | +--ro neighbor-extended-circuit-id? extended-circuit-id | +--ro neighbor-snpa? snpa | +--ro neighbor-level? level | +--ro hold-timer? uint16 | +--ro neighbor-priority? uint8 | +--ro lastuptime? yang:timestamp | +--ro state? enumeration +--ro spf-log | +--ro event* [id] | +--ro id uint32 | +--ro spf-type? enumeration | +--ro level? level-number | +--ro spf-delay? uint32 | +--ro schedule-timestamp? yang:timestamp | +--ro start-timestamp? yang:timestamp | +--ro end-timestamp? yang:timestamp | +--ro trigger-lsp* [lsp] | +--ro lsp lsp-id | +--ro sequence? uint32 +--ro lsp-log | +--ro event* [id] | +--ro id uint32 | +--ro level? level-number | +--ro lsp Litkowski, et al. Expires April 10, 2015 [Page 6] Internet-Draft isis-cfg October 2014 | | +--ro lsp? lsp-id | | +--ro sequence? uint32 | +--ro received-timestamp? yang:timestamp +--ro database | +--ro level-db* [level] | +--ro level level-number | +--ro lsp* [lsp-id] | +--ro lsp-id lsp-id | +--ro checksum? uint16 | +--ro remaining-lifetime? uint16 | +--ro sequence? uint32 | +--ro attributes? bits | +--ro is-neighbor | | +--ro neighbor* [neighbor-id] | | ... | +--ro authentication | | +--ro authentication-type? authentication-type | | +--ro authentication-key? string | +--ro extended-is-neighbor | | +--ro neighbor* [neighbor-id] | | ... | +--ro ipv4-internal-reachability | | +--ro prefixes* [ip-prefix] | | ... | +--ro protocol-supported* uint8 | +--ro ipv4-external-reachability | | +--ro prefixes* [ip-prefix] | | ... | +--ro ipv4-addresses* inet:ipv4-address | +--ro ipv4-te-routerid? inet:ipv4-address | +--ro extended-ipv4-reachability | | +--ro prefixes* [ip-prefix] | | ... | +--ro dynamic-hostname? string | +--ro ipv6-te-routerid? inet:ipv6-address | +--ro mt-is-neighbor | | +--ro neighbor* [neighbor-id] | | ... | +--ro mt-entries | | +--ro topology* [MT-ID] | | ... | +--ro ipv6-addresses* inet:ipv6-address | +--ro mt-extended-ipv4-reachability | | +--ro prefixes* [ip-prefix] | | ... | +--ro mt-ipv6-reachability | | +--ro prefixes* [ip-prefix] | | ... Litkowski, et al. Expires April 10, 2015 [Page 7] Internet-Draft isis-cfg October 2014 | +--ro ipv6-reachability | | +--ro prefixes* [ip-prefix] | | ... | +--ro router-capabilities | +--ro binary? binary +--ro hostnames +--ro hostname* [system-id] +--ro system-id system-id +--ro hostname? string 2.1. ISIS Configuration The ISIS configuration currently supports both VRF-centric and protocol-centric configuration. This may be changed in future. In a protocol-centric configuration, the isis configuration is applied within the standard-routing-instance and the instance list helps to reference the routing-instance where ISIS is activated. In a VRF- centric configuration, the isis configuration is applied directly within the appropriate routing-instance where ISIS is activated. In this case, the instance list will contain a single element. The ISIS configuration container is divided in: o Global parameters. o Per interface configuration (see Section 2.4). 2.2. Multitopology Parameters The topologies list is used to enable support of MT extensions for specific address families. Each topology should refer to an existing RIB. 2.3. Per-Level Parameters Some parameters support per level configuration. In this case, the parameter is built as a list, so different values could be used for each level. The "level-all" permits to apply a value to both levels. +--rw priority* [level] | +--rw value? uint8 | +--rw level level Litkowski, et al. Expires April 10, 2015 [Page 8] Internet-Draft isis-cfg October 2014 2.4. Per-Interface Parameters The per-interface section of the ISIS instance describes the interface specific parameters. The interface is referenced using a string. It would be up to the server device to check if the interface exists or not. Using a string permits to support some specific implementations that use the "interface all" stanza to apply a configuration to all interfaces. Each interface has interface-specific parameters that may have a different value per level as described in previous section. An interface-specific parameter always override an ISIS global parameter . Litkowski, et al. Expires April 10, 2015 [Page 9] Internet-Draft isis-cfg October 2014 +--rw name string +--rw level-type? level +--rw lsp-pacing-interval? uint16 +--rw lsp-retransmit-interval? uint16 +--rw passive? boolean +--rw csnp-interval? uint16 +--rw three-way-handshake? boolean +--rw hello-padding? boolean +--rw mesh-group-enabled? mesh-group-state +--rw mesh-group? uint8 +--rw interface-type? interface-type +--rw enabled? boolean +--rw tag* uint32 {prefix-tag}? +--rw tag64* uint64 {prefix-tag64}? +--rw hello-authentication* [level] | +--rw type? authentication-type | +--rw key? string | +--rw level level +--rw hello-interval* [level] | +--rw value? uint16 | +--rw level level +--rw hello-multiplier* [level] | +--rw value? uint16 | +--rw level level +--rw priority* [level] | +--rw value? uint8 | +--rw level level +--rw af* [af] | +--rw af string | +--rw bfd-enabled? empty | +--rw metric* [level] | ... +--rw topologies* [name] +--rw name rt:rib-ref +--rw metric* [level] ... 2.5. Operational State "isis" container provides operational states for ISIS. This container is divided in multiple components: o system-counters : provides statistical informations about the global system. o interface-counters : provides statistical informations for each interface. Litkowski, et al. Expires April 10, 2015 [Page 10] Internet-Draft isis-cfg October 2014 o packet-counters : provides statistical informations for each type of PDU. o interface : provides configuration state information for each interface. o adjacencies: provides state information about current ISIS adjacencies. o spf-log: provides information about SPF events on the node. o lsp-log: provides information about LSP events on the node (reception of an LSP or modification of local LSP). o database: provides details on current LSDB. o hostnames: provides information about system-id to hostname mappings. 3. RPC Operations The "ietf-isis" module defines two RPC operations: o clear-isis-database: reset the content of a particular ISIS database and restart database synchronization with the neighbors. o clear-isis-adjacency: restart a particular set of ISIS adjacencies. rpcs: +---x clear-adjacency | +--ro input | +--ro routing-instance-name rt:routing-instance-state-ref | +--ro routing-protocol-instance-name instance-state-ref | +--ro level? level | +--ro interface? string +---x clear-database +--ro input +--ro routing-instance-name rt:routing-instance-state-ref +--ro routing-protocol-instance-name instance-state-ref +--ro level? level 4. Notifications The "ietf-isis" module introduces some notifications : database-overload : raised when overload condition is changed. Litkowski, et al. Expires April 10, 2015 [Page 11] Internet-Draft isis-cfg October 2014 lsp-too-large : raised when the system tries to propagate a too large PDU. corrupted-lsp-detected : raised when the system find that an LSP that was stored in memory has become corrupted. attempt-to-exceed-max-sequence : This notification is sent when the system wraps the 32-bit sequence counter of an LSP. id-len-mismatch : This notification is sent when we receive a PDU with a different value for the System ID length. max-area-addresses-mismatch : This notification is sent when we receive a PDU with a different value for the Maximum Area Addresses. own-lsp-purge : This notification is sent when the system receives a PDU with its own system ID and zero age. sequence-number-skipped : This notification is sent when the system receives a PDU with its own system ID and different contents. The system has to reissue the LSP with a higher sequence number. authentication-type-failure : This notification is sent when the system receives a PDU with the wrong authentication type field. authentication-failure : This notification is sent when the system receives a PDU with the wrong authentication information. version-skew : This notification is sent when the system receives a PDU with a different protocol version number. area-mismatch : This notification is sent when the system receives a Hello PDU from an IS that does not share any area address. rejected-adjacency : This notification is sent when the system receives a Hello PDU from an IS but does not establish an adjacency for some reason. protocols-supported-mismatch : This notification is sent when the system receives a non pseudonode LSP that has no matching protocol supported. lsp-error-detected : This notification is sent when the system receives a LSP with a parse error. Litkowski, et al. Expires April 10, 2015 [Page 12] Internet-Draft isis-cfg October 2014 adjacency-change : This notification is sent when an ISIS adjacency moves to Up state or to Down state. lsp-received : This notification is sent when a LSP is received. lsp-generation : This notification is sent when a LSP is regenerated. notifications: +---n database-overload | +--ro instance-name? string | +--ro instance-level? level | +--ro overload? enumeration +---n lsp-too-large | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro pdu-size? uint32 | +--ro lsp-id? lsp-id +---n corrupted-lsp-detected | +--ro instance-name? string | +--ro instance-level? level | +--ro lsp-id? lsp-id +---n attempt-to-exceed-max-sequence | +--ro instance-name? string | +--ro instance-level? level | +--ro lsp-id? lsp-id +---n id-len-mismatch | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro pdu-field-len? uint8 | +--ro raw-pdu? binary +---n max-area-addresses-mismatch | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro max-area-addresses? uint8 | +--ro raw-pdu? binary +---n own-lsp-purge | +--ro instance-name? string | +--ro instance-level? level Litkowski, et al. Expires April 10, 2015 [Page 13] Internet-Draft isis-cfg October 2014 | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro lsp-id? lsp-id +---n sequence-number-skipped | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro lsp-id? lsp-id +---n authentication-type-failure | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro raw-pdu? binary +---n authentication-failure | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro raw-pdu? binary +---n version-skew | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro protocol-version? uint8 | +--ro raw-pdu? binary +---n area-mismatch | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro raw-pdu? binary +---n rejected-adjacency | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro raw-pdu? binary | +--ro reason? string Litkowski, et al. Expires April 10, 2015 [Page 14] Internet-Draft isis-cfg October 2014 +---n protocols-supported-mismatch | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro raw-pdu? binary | +--ro protocols* uint8 +---n lsp-error-detected | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro lsp-id? lsp-id | +--ro raw-pdu? binary | +--ro error-offset? uint32 | +--ro tlv-type? uint8 +---n adjacency-change | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro neighbor? string | +--ro neighbor-system-id? system-id | +--ro level? level | +--ro state? enumeration | +--ro reason? string +---n lsp-received | +--ro instance-name? string | +--ro instance-level? level | +--ro interface-name? string | +--ro interface-level? level | +--ro extended-circuit-id? extended-circuit-id | +--ro lsp-id? lsp-id | +--ro sequence? uint32 | +--ro received-timestamp? yang:timestamp | +--ro neighbor-system-id? system-id +---n lsp-generation +--ro instance-name? string +--ro instance-level? level +--ro lsp-id? lsp-id +--ro sequence? uint32 +--ro send-timestamp? yang:timestamp Litkowski, et al. Expires April 10, 2015 [Page 15] Internet-Draft isis-cfg October 2014 5. Interaction with Other YANG Modules The "isis" configuration container augments the "/rt:routing/ rt:routing-instance/rt:routing-protocols/routing-protocol" container of the ietf-routing module by defining ISIS specific parameters. The "isis" operational state container augments the "/rt:routing- state/rt:routing-instance/rt:routing-protocols/routing-protocol" container of the ietf-routing module by defining ISIS specific operational states. Some ISIS specific routes attributes are added to route objects of the ietf-routing module by augmenting "/rt:routing- state/rt:ribs/rt:rib/rt:routes/rt:route" and "/rt:active- route/rt:output/rt:route". 6. YANG Module file "ietf-isis@2014-10-07.yang" module ietf-isis { namespace "urn:ietf:params:xml:ns:yang:ietf-isis"; prefix isis; import ietf-routing { prefix "rt"; } import ietf-inet-types { prefix inet; } import ietf-yang-types { prefix yang; } organization "IETF ISIS Working Group"; contact "WG List: <mailto:isis-wg@ietf.org> Editor: Stephane Litkowski <mailto:stephane.litkowski@orange.com> Derek Yeung <mailto:myeung@cisco.com> Litkowski, et al. Expires April 10, 2015 [Page 16] Internet-Draft isis-cfg October 2014 Acee Lindem <mailto:acee@cisco.com> Jeffrey Zhang <mailto:zzhang@juniper.net> Ladislav Lhotka <mailto:llhotka@nic.cz> Yi Yang <mailto:yiya@cisco.com> Dean Bogdanovic <mailto:deanb@juniper.net> Kiran Agrahara Sreenivasa <mailto:kkoushik@brocade.com> Yingzhen Qu <mailto:yiqu@cisco.com> "; description "The YANG module defines a generic configuration model for ISIS common across all of the vendor implementations."; revision 2014-10-07 { description " * Removed spf parameters (should be part of vendor specific extensions. * Removed hello parameters at global level. * Interface configuration uses a string rather than a reference. This permits to map to some vendor specific configuration. "; reference ""; } revision 2014-09-26 { description " * Add BFD support * remove max-elements to max-area-addresses "; reference ""; } revision 2014-09-11 { description " * Add level parameter to ispf and spf delay * Add LSP generation as a feature * Make lsp-refresh a feature * Change parameter container to list Litkowski, et al. Expires April 10, 2015 [Page 17] Internet-Draft isis-cfg October 2014 "; reference ""; } revision 2014-09-05 { description " Rewrite of the global hierarchy."; reference ""; } revision 2014-08-06 { description " * isis-state renamed to isis. * Add GR support * Add meshgroup support * Add CLNS support * Add 64bits tags * Add notifications to be aligned with MIB4444 * Add packet-counters, interface-counters, system-counters states * Add 3-way handshake support * Rename isis-adjacency-updown to adjacency-change * Add notification for LSP reception * Use feature for reference BW * Add lsp-retransmit-interval on interfaces * Rename lsp-interval to lsp-pacing-interval * Add ispf support as feature * Add spf delay support as feature (2step & exp backoff) * Add maximum-area-addresses * Add default-metric "; reference "RFC XXXX: YANG Data Model for ISIS Protocol"; } revision 2014-06-25 { description " * isis-cfg renamed to isis. * Add precisions on authentication-keys in description "; reference "draft-litkowski-isis-yang-isis-01"; } revision 2014-06-20 { description " * isis-op renamed to isis-state. * Multiple instances under ISIS are removed. * interface-cfg grouping removed and content is directly included in container isis. * TLVxx renamed with human-readable name in isis-database. TLV reference are putted in description. Litkowski, et al. Expires April 10, 2015 [Page 18] Internet-Draft isis-cfg October 2014 * Reference to core routing module were fixed. * Namespace fixed. * Add simple-iso-address type. * area-id and system-id in ISIS container are merged to nsap-address. * Add isis-system-id type. * Add isis-lsp-id type. * Add remaining-lifetime leaf in isis-database. * Add TLV2 (is-neighbor) in isis-database. * Renamed some container name for consistency reason ('isis-' prefixed). * Add new identities isis-cfg and isis-state. * Add descriptions. * Add notification isis-adjacency-updown. * Add RPC clear-isis-adjacency and clear-isis-database. "; reference "draft-litkowski-isis-yang-isis-00"; } revision 2014-06-11 { description "Initial revision."; reference "draft-litkowski-netmod-isis-cfg-00"; } identity isis { base rt:routing-protocol; description "Identity for the ISIS routing protocol."; } identity isis-adjacency-change { description "Identity for the ISIS routing protocol adjacency state."; } identity clear-isis-database { description "Identity for the ISIS routing protocol database reset action."; } identity clear-isis-adjacency { description "Identity for the ISIS routing protocol adjacency reset action."; } feature prefix-tag { description "Add 32bit tag to prefixes"; } Litkowski, et al. Expires April 10, 2015 [Page 19] Internet-Draft isis-cfg October 2014 feature prefix-tag64 { description "Add 64bit tag to prefixes"; } feature reference-bandwidth { description "Use a reference bandwidth to compute metric."; } feature multi-topology { description "Multitopology routing support."; } feature nlpid-control { description "This feature controls the advertisement of support NLPID within ISIS configuration."; } feature graceful-restart { description "Graceful restart support as per RFC5306."; } feature lsp-gen-interval-exp-delay { description "LSP generation delay using exp backoff."; } feature lsp-refresh { description "Configuration of LSP refresh interval."; } feature maximum-area-addresses { description "Support of maximum-area-addresses config."; } typedef instance-state-ref { type leafref { path "/rt:routing-state/rt:routing-instance/" +"rt:routing-protocols/rt:routing-protocol/rt:name"; } description "This type is used for leaves that reference state data of an ISIS protocol instance."; } Litkowski, et al. Expires April 10, 2015 [Page 20] Internet-Draft isis-cfg October 2014 typedef admin-state { type enumeration { enum "up" { description "Up state"; } enum "down" { description "Down state"; } } description "Administrative state of a component."; } typedef oper-state { type enumeration { enum "up" { description "Up state"; } enum "down" { description "Down state"; } } description "Operational state of a component."; } typedef circuit-id { type uint8; description "This type defines the circuit ID associated with an interface."; } typedef extended-circuit-id { type uint32; description "This type defines the extended circuit ID associated with an interface."; } typedef interface-type { type enumeration { enum broadcast { description "Broadcast interface type. Would result in DIS election."; } Litkowski, et al. Expires April 10, 2015 [Page 21] Internet-Draft isis-cfg October 2014 enum point-to-point { description "Point to point interface type."; } } description "This type defines the type of adjacency to be established on the interface. This is affecting the type of hello message that would be used."; } typedef authentication-type { type enumeration { enum none { description "No authentication used."; } enum plaintext { description "Plain text password used."; } enum message-digest { description "MD5 digest used."; } } description "This type defines available authentication types."; } typedef level { type enumeration { enum "level-1" { description "This enum describes L1 only capability."; } enum "level-2" { description "This enum describes L2 only capability."; } enum "level-all" { description "This enum describes both levels capability."; } } default "level-all"; description "This type defines ISIS level of an object."; } Litkowski, et al. Expires April 10, 2015 [Page 22] Internet-Draft isis-cfg October 2014 typedef level-number { type uint8 { range "1 .. 2"; } description "This type defines a current ISIS level."; } typedef lsp-id { type string { pattern '[0-9A-Fa-f]{4}\.[0-9A-Fa-f]{4}\.[0-9A-Fa-f]' +'{4}\.[0-9][0-9]-[0-9][0-9]'; } description "This type defines ISIS LSP ID using pattern, system id looks like : 0143.0438.AeF0.02-01"; } typedef area-address { type string { pattern '[0-9A-Fa-f]{2}\.([0-9A-Fa-f]{4}\.){0,3}'; } description "This type defines the area address."; } typedef snpa { type string { length "0 .. 20"; } description "This type defines Subnetwork Point of Attachement format."; } typedef system-id { type string { pattern '[0-9A-Fa-f]{4}\.[0-9A-Fa-f]{4}\.[0-9A-Fa-f]{4}\.00'; } description "This type defines ISIS system id using pattern, system id looks like : 0143.0438.AeF0.00"; } typedef wide-metric { Litkowski, et al. Expires April 10, 2015 [Page 23] Internet-Draft isis-cfg October 2014 type uint32 { range "0 .. 16777215"; } description "This type defines wide style format of ISIS metric."; } typedef std-metric { type uint8 { range "0 .. 63"; } description "This type defines old style format of ISIS metric."; } typedef mesh-group-state { type enumeration { enum "meshInactive" { description "Interface is not part of a mesh group."; } enum "meshSet" { description "Interface is part of a mesh group."; } enum "meshBlocked" { description "LSPs must not be flooded over that interface."; } } description "This type describes meshgroup state of an interface"; } grouping notification-instance-hdr { description "This group describes common instance specific data for notifications."; leaf instance-name { type string; description "Describes the name of the ISIS instance."; } leaf instance-level { type level; description Litkowski, et al. Expires April 10, 2015 [Page 24] Internet-Draft isis-cfg October 2014 "Describes the ISIS level of the instance."; } } grouping notification-interface-hdr { description "This group describes common interface specific data for notifications."; leaf interface-name { type string; description "Describes the name of the ISIS interface."; } leaf interface-level { type level; description "Describes the ISIS level of the interface."; } leaf extended-circuit-id { type extended-circuit-id; description "Describes the extended circuit-id of the interface."; } } grouping route-content { description "This group add isis-specific route properties."; leaf metric { type uint32; description "This leaf describes ISIS metric of a route."; } leaf-list tag { type uint64; description "This leaf describes list of tags associated with the route. The leaf describes both 32bits and 64bits tags."; } leaf route-type { type enumeration { enum l2-up-internal { description "Level 2 internal route and not leaked to a lower level"; } enum l1-up-internal { description "Level 1 internal route Litkowski, et al. Expires April 10, 2015 [Page 25] Internet-Draft isis-cfg October 2014 and not leaked to a lower level"; } enum l2-up-external { description "Level 2 external route and not leaked to a lower level"; } enum l1-up-external { description "Level 1 external route and not leaked to a lower level"; } enum l2-down-internal { description "Level 2 internal route and leaked to a lower level"; } enum l1-down-internal { description "Level 1 internal route and leaked to a lower level"; } enum l2-down-external { description "Level 2 external route and leaked to a lower level"; } enum l1-down-external { description "Level 1 external route and leaked to a lower level"; } } description "This leaf describes the type of ISIS route."; } } augment "/rt:routing-state/rt:ribs/rt:rib/rt:routes/rt:route" { when "rt:source-protocol = 'isis:isis'" { description "ISIS-specific route attributes."; } uses route-content; description "This augments route object in RIB with ISIS-specific attributes."; } augment "/rt:active-route/rt:output/rt:route" { uses route-content; description "ISIS-specific route attributes."; } Litkowski, et al. Expires April 10, 2015 [Page 26] Internet-Draft isis-cfg October 2014 grouping prefix-ipv4-std { description "This group defines attributes of an IPv4 standard prefix."; leaf up-down { type boolean; description "This leaf expresses the value of up/down bit."; } leaf i-e { type boolean; description "This leaf expresses the value of I/E bit."; } leaf ip-prefix { type inet:ipv4-address; description "This leaf describes the IPv4 prefix"; } leaf prefix-len { type uint8; description "This leaf describes the IPv4 prefix len in bits"; } leaf default-metric { type std-metric; description "This leaf describes the ISIS default metric value"; } container delay-metric { leaf metric { type std-metric; description "This leaf describes the ISIS delay metric value"; } leaf supported { type boolean; default "false"; description "This leaf describes if the metric is supported."; } description "This container defines the ISIS delay metric."; } container expense-metric { leaf metric { type std-metric; Litkowski, et al. Expires April 10, 2015 [Page 27] Internet-Draft isis-cfg October 2014 description "This leaf describes the ISIS expense metric value"; } leaf supported { type boolean; default "false"; description "This leaf describes if the metric is supported."; } description "This container defines the ISIS expense metric."; } container error-metric { leaf metric { type std-metric; description "This leaf describes the ISIS error metric value"; } leaf supported { type boolean; default "false"; description "This leaf describes if the metric is supported."; } description "This container defines the ISIS error metric."; } } grouping prefix-ipv4-extended { description "This group defines attributes of an IPv4 extended prefix."; leaf up-down { type boolean; description "This leaf expresses the value of up/down bit."; } leaf ip-prefix { type inet:ipv4-address; description "This leaf describes the IPv4 prefix"; } leaf prefix-len { type uint8; description "This leaf describes the IPv4 prefix len in bits"; Litkowski, et al. Expires April 10, 2015 [Page 28] Internet-Draft isis-cfg October 2014 } leaf metric { type wide-metric; description "This leaf describes the ISIS metric value"; } leaf-list tag { type uint32; description "This leaf describes a list of tags associated with the prefix."; } leaf-list tag64 { type uint64; description "This leaf describes a list of 64-bit tags associated with the prefix."; } } grouping prefix-ipv6-extended { description "This group defines attributes of an IPv6 prefix."; leaf up-down { type boolean; description "This leaf expresses the value of up/down bit."; } leaf ip-prefix { type inet:ipv6-address; description "This leaf describes the IPv6 prefix"; } leaf prefix-len { type uint8; description "This leaf describes the IPv4 prefix len in bits"; } leaf metric { type wide-metric; description "This leaf describes the ISIS metric value"; } leaf-list tag { type uint32; Litkowski, et al. Expires April 10, 2015 [Page 29] Internet-Draft isis-cfg October 2014 description "This leaf describes a list of tags associated with the prefix."; } leaf-list tag64 { type uint64; description "This leaf describes a list of 64-bit tags associated with the prefix."; } } grouping neighbor-extended { description "This group defines attributes of an ISIS extended neighbor."; leaf neighbor-id { type system-id; description "This leaf describes the system-id of the neighbor."; } leaf metric { type wide-metric; description "This leaf describes the ISIS metric value"; } } grouping neighbor { description "This group defines attributes of an ISIS standard neighbor."; leaf neighbor-id { type system-id; description "This leaf describes the system-id of the neighbor."; } leaf i-e { type boolean; description "This leaf expresses the value of I/E bit."; } leaf default-metric { type std-metric; description "This leaf describes the ISIS default metric value"; } container delay-metric { Litkowski, et al. Expires April 10, 2015 [Page 30] Internet-Draft isis-cfg October 2014 leaf metric { type std-metric; description "This leaf describes the ISIS delay metric value"; } leaf supported { type boolean; default "false"; description "This leaf describes if the metric is supported."; } description "This container defines the ISIS delay metric."; } container expense-metric { leaf metric { type std-metric; description "This leaf describes the ISIS delay expense value"; } leaf supported { type boolean; default "false"; description "This leaf describes if the metric is supported."; } description "This container defines the ISIS expense metric."; } container error-metric { leaf metric { type std-metric; description "This leaf describes the ISIS error metric value"; } leaf supported { type boolean; default "false"; description "This leaf describes if the metric is supported."; } description "This container defines the ISIS error metric."; } } grouping database { description Litkowski, et al. Expires April 10, 2015 [Page 31] Internet-Draft isis-cfg October 2014 "This group defines attributes of an ISIS database (Link State DB)."; leaf lsp-id { type lsp-id; description "This leaf describes the LSP ID of the LSP."; } leaf checksum { type uint16; description "This leaf describes the checksum of the LSP."; } leaf remaining-lifetime { type uint16; units "seconds"; description "This leaf describes the remaining lifetime in seconds before the LSP expiration."; } leaf sequence { type uint32; description "This leaf describes the sequence number of the LSP."; } leaf attributes { type bits { bit PARTITIONNED { description "If set, the originator supports partition repair."; } bit ATTACHED-ERROR { description "If set, the originator is attached to another area using the referred metric."; } bit ATTACHED-EXPENSE { description "If set, the originator is attached to another area using the referred metric."; } bit ATTACHED-DELAY { description "If set, the originator is attached to another area using the referred metric."; } bit ATTACHED-DEFAULT { description Litkowski, et al. Expires April 10, 2015 [Page 32] Internet-Draft isis-cfg October 2014 "If set, the originator is attached to another area using the referred metric."; } bit OVERLOAD { description "If set, the originator is overloaded, and must be avoided in path calculation."; } } description "This leaf describes attributes of the LSP."; } container is-neighbor { list neighbor { key "neighbor-id"; uses neighbor; description "List of neighbors."; } description "This leaf describes list of ISIS neighbors. ISIS reference is TLV 2."; } container authentication { leaf authentication-type { type authentication-type; description "This leaf describes the authentication type to be used."; } leaf authentication-key { type string; description "This leaf describes the authentication key to be used. For security reason, the authentication key MUST NOT be presented in plaintext format. Authors recommends to use MD5 hash to present the authentication-key."; } description "This container describes authentication information of the node. ISIS reference is TLV 10."; } container extended-is-neighbor { list neighbor { key "neighbor-id"; Litkowski, et al. Expires April 10, 2015 [Page 33] Internet-Draft isis-cfg October 2014 uses neighbor-extended; description "List of neighbors."; } description "This container describes list of ISIS extended neighbors. ISIS reference is TLV 22."; } container ipv4-internal-reachability { list prefixes { key "ip-prefix"; uses prefix-ipv4-std; description "List of prefixes."; } description "This container describes list of IPv4 internal reachability information. ISIS reference is TLV 128."; } leaf-list protocol-supported { type uint8; description "This leaf describes the list of supported protocols. ISIS reference is TLV 129."; } container ipv4-external-reachability { list prefixes { key "ip-prefix"; uses prefix-ipv4-std; description "List of prefixes."; } description "This container describes list of IPv4 external reachability information. ISIS reference is TLV 130."; } leaf-list ipv4-addresses { type inet:ipv4-address; description "This leaf describes the IPv4 addresses of the node. Litkowski, et al. Expires April 10, 2015 [Page 34] Internet-Draft isis-cfg October 2014 ISIS reference is TLV 132."; } leaf ipv4-te-routerid { type inet:ipv4-address; description "This leaf describes the IPv4 Traffic Engineering router ID of the node. ISIS reference is TLV 134."; } container extended-ipv4-reachability { list prefixes { key "ip-prefix"; uses prefix-ipv4-extended; description "List of prefixes."; } description "This container describes list of IPv4 extended reachability information. ISIS reference is TLV 135."; } leaf dynamic-hostname { type string; description "This leaf describes the name of the node. ISIS reference is TLV 137."; } leaf ipv6-te-routerid { type inet:ipv6-address; description "This leaf describes the IPv6 Traffic Engineering router ID of the node. ISIS reference is TLV 140."; } container mt-is-neighbor { list neighbor { key "neighbor-id"; leaf MT-ID { type uint16 { Litkowski, et al. Expires April 10, 2015 [Page 35] Internet-Draft isis-cfg October 2014 range "0 .. 4095"; } description "This leaf defines the identifier of a topology."; } uses neighbor-extended; description "List of neighbors."; } description "This container describes list of ISIS multi-topology neighbors. ISIS reference is TLV 223."; } container mt-entries { list topology { key "MT-ID"; leaf MT-ID { type uint16 { range "0 .. 4095"; } description "This leaf defines the identifier of a topology."; } leaf attributes { type bits { bit OVERLOAD { description "If set, the originator is overloaded, and must be avoided in path calculation."; } bit ATTACHED { description "If set, the originator is attached to another area using the referred metric."; } } description "This leaf describes attributes of the LSP for the associated topology."; } description Litkowski, et al. Expires April 10, 2015 [Page 36] Internet-Draft isis-cfg October 2014 "List of topologies supported."; } description "This container describes the topology supported. ISIS reference is TLV 229."; } leaf-list ipv6-addresses { type inet:ipv6-address; description "This leaf describes the IPv6 interface addresses of the node. ISIS reference is TLV 232."; } container mt-extended-ipv4-reachability { list prefixes { key "ip-prefix"; leaf MT-ID { type uint16 { range "0 .. 4095"; } description "This leaf defines the identifier of a topology."; } uses prefix-ipv4-extended; description "List of prefixes."; } description "This container describes list of IPv4 reachability information in multi-topology environment. ISIS reference is TLV 235."; } container mt-ipv6-reachability { list prefixes { key "ip-prefix"; leaf MT-ID { type uint16 { range "0 .. 4095"; } Litkowski, et al. Expires April 10, 2015 [Page 37] Internet-Draft isis-cfg October 2014 description "This leaf defines the identifier of a topology."; } uses prefix-ipv6-extended; description "List of prefixes."; } description "This container describes list of IPv6 reachability information in multi-topology environment. ISIS reference is TLV 237."; } container ipv6-reachability { list prefixes { key "ip-prefix"; uses prefix-ipv6-extended; description "List of prefixes."; } description "This container describes list of IPv6 reachability information. ISIS reference is TLV 236."; } container router-capabilities { leaf binary { type binary; description "This leaf describes the capability of the node. Format is binary according to the protocol encoding."; } description "This container describes the capabilities of the node. This container may be extended with detailed information. ISIS reference is TLV 242."; } } augment "/rt:routing/rt:routing-instance/rt:routing-protocols/" Litkowski, et al. Expires April 10, 2015 [Page 38] Internet-Draft isis-cfg October 2014 +"rt:routing-protocol" { when "rt:type = 'isis:isis'" { description "This augment is only valid when routing protocol instance type is isis."; } description "This augments a routing protocol instance with ISIS specific parameters."; container isis { list instance { must "count(area-address) > 0" { error-message "At least one area-address must be configured."; description "Enforce configuration of at least one area."; } key routing-instance; leaf routing-instance { type rt:routing-instance-ref; description "Reference routing instance. For protocol centric model, which is supported in default-instance only, this could reference any VRF routing-instance. For VRF centric model, must reference the enclosing routing-instance."; } leaf level { type level; default "level-all"; description "This leaf describes the type of ISIS node. A node can be level-1-only, level-2-only or level-1-2. "; } leaf system-id { type system-id; description "This leaf defines the system-id of the node."; } Litkowski, et al. Expires April 10, 2015 [Page 39] Internet-Draft isis-cfg October 2014 leaf maximum-area-addresses { if-feature maximum-area-addresses; type uint8; default 3; description "Defines the maximum areas supported."; } leaf-list area-address { type area-address; description "List of areas supported by the protocol instance."; } leaf ipv4-router-id { type inet:ipv4-address; description "Router ID value that would be used in TLV 134."; } leaf ipv6-router-id { type inet:ipv6-address; description "Router ID value that would be used in TLV 140."; } leaf reference-bandwidth { if-feature reference-bandwidth; type uint32; units "bps"; description "This leaf defines the bandwidth for calculating metric."; } leaf lsp-mtu { type uint16; units "bytes"; default 1492; description "This leaf describes the maximum size of a LSP PDU in bytes."; } leaf lsp-lifetime { type uint16; units "seconds"; description "This leaf describes the lifetime of the router Litkowski, et al. Expires April 10, 2015 [Page 40] Internet-Draft isis-cfg October 2014 LSP in seconds."; } leaf lsp-refresh { if-feature lsp-refresh; type uint16; units "seconds"; description "This leaf describes the refresh interval of the router LSP in seconds."; } list lsp-gen-interval-exp-delay { if-feature lsp-gen-interval-exp-delay; key level; leaf initial { type uint16; units "milliseconds"; description "Initial timer."; } leaf incremental { type uint16; units "milliseconds"; description "Incremental timer."; } leaf maximum { type uint8; units "seconds"; description "Maximum timer."; } leaf level { type level; description "Level applicability."; } description "Configuration of exponential backoff delay for LSP generation."; } container graceful-restart { if-feature graceful-restart; leaf restart-duration { type uint16; units seconds; Litkowski, et al. Expires April 10, 2015 [Page 41] Internet-Draft isis-cfg October 2014 description "Defines the restart duration in seconds."; } leaf helper-disable { type empty; description "If the leaf exists, helper capacity is disabled."; } leaf enabled { type boolean; description "Control enabling the feature."; } description "This container activates graceful restart."; } list psnp-authentication { key level; leaf value { type boolean; default "true"; description "This leaf describes if PSNP messages must be authenticated."; } leaf level { type level; description "Level applicability."; } description "Container for CSNP authentication."; } list csnp-authentication { key level; leaf value { type boolean; default "true"; description "This leaf describes if CSNP messages must be authenticated."; } leaf level { Litkowski, et al. Expires April 10, 2015 [Page 42] Internet-Draft isis-cfg October 2014 type level; description "Level applicability."; } description "Container for CSNP authentication."; } list authentication-key { key level; leaf value { type string; description "This leaf describes the authentication key to be used. For security reason, the authentication key MUST NOT be presented in plaintext format upon a get-config reply. Authors recommends to use MD5 hash to present the authentication-key"; } leaf level { type level; description "Level applicability."; } description "Container for authentication key."; } list authentication-type { key level; leaf value { type authentication-type; description "This leaf describes the authentication type to be used."; } leaf level { type level; description "Level applicability."; } description "Container for authentication-type"; Litkowski, et al. Expires April 10, 2015 [Page 43] Internet-Draft isis-cfg October 2014 } list metric-type { key level; leaf value { type enumeration { enum wide-only { description "Advertise new metric style only (RFC5305)"; } enum old-only { description "Advertise old metric style only (RFC1195)"; } enum both { description "Advertise both metric styles"; } } description "This leaf describes the type of metric to be generated. Wide-only means only new metric style is generated, old-only means that only old style metric is generated, and both means that both are advertised. This leaf is only affecting IPv4 metrics."; } leaf level { type level; description "Level applicability."; } description "Metric style container."; } list preference { key level; leaf value { type uint8; description "This leaf defines the protocol preference."; } Litkowski, et al. Expires April 10, 2015 [Page 44] Internet-Draft isis-cfg October 2014 leaf level { type level; description "Level applicability."; } description "This leaf defines the protocol preference."; } list external-preference { key level; leaf value { type uint8; description "This leaf defines the protocol preference for external routes."; } leaf level { type level; description "Level applicability."; } description "This leaf defines the protocol preference for external routes."; } list default-metric { key level; leaf value { type wide-metric; description "Value of the metric"; } leaf level { type level; description "Level applicability of the metric."; } description "Defines the metric to be used by default."; } list af { if-feature nlpid-control; key af; leaf af { type string; description Litkowski, et al. Expires April 10, 2015 [Page 45] Internet-Draft isis-cfg October 2014 "Address-family"; } leaf enabled { type boolean; description "Describes the activation state of the AF."; } list default-metric { key level; leaf value { type wide-metric; description "Value of the metric"; } leaf level { type level; description "Level applicability of the metric."; } description "Defines the metric to be used by default."; } description "List of address families supported"; } list topologies { if-feature multi-topology; key "name"; leaf enabled { type boolean; description "Describes the activation state of the AF."; } leaf name { type rt:rib-ref; description "RIB"; } description "List of topologies"; } Litkowski, et al. Expires April 10, 2015 [Page 46] Internet-Draft isis-cfg October 2014 list overload { key level; leaf status { type boolean; description "This leaf defines the overload status."; } leaf type { type enumeration { enum "max-metric" { description "Advertise max metric for all links."; } enum "overload-bit" { description "Set overload bit"; } } description "Defines how the overload status is set."; } leaf timeout { type uint16; units "seconds"; description "This leaf defines the timeout in seconds of the overload condition."; } leaf level { type level; description "Level applicability of the metric."; } description "This leaf describes if the router is set to overload state."; } container interfaces { list interface { key "name"; leaf name { type string; description "Reference to the interface within the routing-instance."; Litkowski, et al. Expires April 10, 2015 [Page 47] Internet-Draft isis-cfg October 2014 } leaf level-type { type level; default "level-all"; description "This leaf defines the associated ISIS level of the interface."; } leaf lsp-pacing-interval { type uint16; units "milliseconds"; description "This leaf defines the interval between LSP transmissions in milli-seconds"; } leaf lsp-retransmit-interval { type uint16; units "seconds"; description "This leaf defines the interval between retransmission of LSP"; } leaf passive { type boolean; default "false"; description "This leaf defines if interface is in passive mode (ISIS not running, but network is advertised)."; } leaf csnp-interval { type uint16; units "seconds"; description "This leaf defines the interval of CSNP messages."; } leaf three-way-handshake { type boolean; description "This leaf defines if the interface uses 3-way handshake."; } leaf hello-padding { type boolean; description Litkowski, et al. Expires April 10, 2015 [Page 48] Internet-Draft isis-cfg October 2014 "This leaf defines if ISIS Hellos would be padded up to MTU size."; } leaf mesh-group-enabled { type mesh-group-state; description "Describes the mesh group state of the interface."; } leaf mesh-group { when "../mesh-group-enabled = meshSet" { description "Only valid when mesh-group-enabled equals meshSet"; } type uint8; description "Describes the mesh group ID of the interface."; } leaf interface-type { type interface-type; description "This leaf defines the type of adjacency to be established on the interface. This is affecting the type of hello message that would be used."; } leaf enabled { type boolean; default "true"; description "This leaf describes the administrative status of the ISIS interface."; } leaf-list tag { if-feature prefix-tag; type uint32; description "This leaf defines list of tags associated Litkowski, et al. Expires April 10, 2015 [Page 49] Internet-Draft isis-cfg October 2014 with the interface."; } leaf-list tag64 { if-feature prefix-tag64; type uint64; description "This leaf defines list of 64bits tags associated with the interface."; } list hello-authentication { key level; leaf type { type authentication-type; description "This leaf describes the authentication type to be used in hello messages."; } leaf key { type string; description "This leaf describes the authentication key to be used in hello messages. For security reason, the authentication key MUST NOT be presented in plaintext format upon a get-config reply. Authors recommends to use MD5 hash to present the authentication-key"; } leaf level { type level; description "Level applicability."; } description "This leaf describes the authentication type to be used in hello messages."; } list hello-interval { Litkowski, et al. Expires April 10, 2015 [Page 50] Internet-Draft isis-cfg October 2014 key level; leaf value { type uint16; units "seconds"; description "This leaf defines the interval of hello messages."; } leaf level { type level; description "Level applicability."; } description "This leaf defines the interval of hello messages."; } list hello-multiplier { key level; leaf value { type uint16; description "This leaf defines the number of hello failed to be received before declaring the adjacency down."; } leaf level { type level; description "Level applicability."; } description "This leaf defines the number of hello failed to be received before declaring the adjacency down."; } list priority { must 'interface-type = "broadcast"'; key level; leaf value { type uint8 { range "0 .. 127"; } Litkowski, et al. Expires April 10, 2015 [Page 51] Internet-Draft isis-cfg October 2014 description "This leaf describes the priority of the interface for DIS election."; } leaf level { type level; description "Level applicability."; } description "This leaf describes the priority of the interface for DIS election."; } list af { key af; leaf af { type string; description "Address-family"; } leaf bfd-enabled { type empty; description "If the leaf is present, BFD is enabled."; } list metric { key level; leaf value { type wide-metric; description "Metric value."; } leaf level { type level; description "Level applicability."; } description "Container for interface metric"; } description "List of AFs."; } Litkowski, et al. Expires April 10, 2015 [Page 52] Internet-Draft isis-cfg October 2014 list topologies { key name; leaf name { type rt:rib-ref; description "Name of RIB."; } list metric { key level; leaf value { type wide-metric; description "Metric value."; } leaf level { type level; description "Level applicability."; } description "Container for interface metric"; } description "List of topologies."; } description "List of ISIS interfaces."; } description "This container defines ISIS interface specific configuration objects."; } description "List of ISIS instances."; } description "This container defines ISIS specific configuration objects."; } } augment "/rt:routing-state/rt:routing-instance/" +"rt:routing-protocols/rt:routing-protocol" { when "rt:type = 'isis:isis'" { description Litkowski, et al. Expires April 10, 2015 [Page 53] Internet-Draft isis-cfg October 2014 "This augment is only valid when routing protocol instance type is isis."; } description "This augments routing protocol instance states with ISIS specific parameters."; container isis { config false; container system-counters { list level { key level; leaf level { type level-number; description "This leaf describes the ISIS level."; } leaf corrupted-lsps { type uint32; description "Number of corrupted in-memory LSPs detected. LSPs received from the wire with a bad checksum are silently dropped and not counted. LSPs received from the wire with parse errors are counted by lsp-errors."; } leaf authentication-type-fails { type uint32; description "Number of authentication type mismatches."; } leaf authentication-fails { type uint32; description "Number of authentication key failures."; } leaf database-overload { type uint32; description "Number of times the database has become overloaded."; } leaf own-lsp-purge { type uint32; description "Number of times a zero-aged copy of the system's own LSP is received from some other node."; Litkowski, et al. Expires April 10, 2015 [Page 54] Internet-Draft isis-cfg October 2014 } leaf manual-address-drop-from-area { type uint32; description "Number of times a manual address has been dropped from the area."; } leaf max-sequence { type uint32; description "Number of times the system has attempted to exceed the maximum sequence number."; } leaf sequence-number-skipped { type uint32; description "Number of times a sequence number skip has occured."; } leaf id-len-mismatch { type uint32; description "Number of times a PDU is received with a different value for ID field length from that of the receiving system."; } leaf partition-changes { type uint32; description "Number of partition changes detected."; } leaf lsp-errors { type uint32; description "Number of LSPs with errors we have received."; } leaf spf-runs { type uint32; description "Number of times we ran SPF at this level."; } description "List of supported levels."; } description "The container defines a list of counters for the IS."; Litkowski, et al. Expires April 10, 2015 [Page 55] Internet-Draft isis-cfg October 2014 } container interface-counters { list interface { key interface; leaf interface { type string; description "This leaf describes the name of the interface."; } leaf adjacency-changes { type uint32; description "The number of times an adjacency state change has occured on this interface."; } leaf adjacency-number { type uint32; description "The number of adjacencies on this interface."; } leaf init-fails { type uint32; description "The number of times initialization of this interface has failed. This counts events such as PPP NCP failures. Failures to form an adjacency are counted by adjacency-rejects."; } leaf adjacency-rejects { type uint32; description "The number of times an adjacency has been rejected on this interface."; } leaf id-len-mismatch { type uint32; description "The number of times an IS-IS PDU with an ID field length different from that for this system has been received on this interface."; } leaf max-area-addresses-mismatch { type uint32; Litkowski, et al. Expires April 10, 2015 [Page 56] Internet-Draft isis-cfg October 2014 description "The number of times an IS-IS PDU with according max area address field differs from that for this system has been received on this interface."; } leaf authentication-type-fails { type uint32; description "Number of authentication type mismatches."; } leaf authentication-fails { type uint32; description "Number of authentication key failures."; } leaf lan-dis-changes { type uint32; description "The number of times the DIS has changed on this interface at this level. If the interface type is point to point, the count is zero."; } description "List of interfaces."; } description "The container defines a list of counters for interfaces."; } container packet-counters { list level { key level; leaf level { type level-number; description "This leaf describes the ISIS level."; } container iih { leaf in { type uint32; description "Received PDUs."; } Litkowski, et al. Expires April 10, 2015 [Page 57] Internet-Draft isis-cfg October 2014 leaf out { type uint32; description "Sent PDUs."; } description "The number of IIH PDUs received/sent."; } container ish { leaf in { type uint32; description "Received PDUs."; } leaf out { type uint32; description "Sent PDUs."; } description "The number of ISH PDUs received/sent."; } container esh { leaf in { type uint32; description "Received PDUs."; } leaf out { type uint32; description "Sent PDUs."; } description "The number of ESH PDUs received/sent."; } container lsp { leaf in { type uint32; description "Received PDUs."; } leaf out { type uint32; description "Sent PDUs."; } description Litkowski, et al. Expires April 10, 2015 [Page 58] Internet-Draft isis-cfg October 2014 "The number of LSP PDUs received/sent."; } container psnp { leaf in { type uint32; description "Received PDUs."; } leaf out { type uint32; description "Sent PDUs."; } description "The number of PSNP PDUs received/sent."; } container csnp { leaf in { type uint32; description "Received PDUs."; } leaf out { type uint32; description "Sent PDUs."; } description "The number of CSNP PDUs received/sent."; } container unknown { leaf in { type uint32; description "Received PDUs."; } leaf out { type uint32; description "Sent PDUs."; } description "The number of unknown PDUs received/sent."; } description "List of supported levels."; } description Litkowski, et al. Expires April 10, 2015 [Page 59] Internet-Draft isis-cfg October 2014 "The container defines a list of PDU counters."; } container interfaces { list interfaces { key interface; leaf interface { type string; description "This leaf describes the name of the interface."; } leaf circuit-id { type circuit-id; description "This leaf describes the circuit-id associated with the interface."; } leaf admin-state { type admin-state; description "This leaf describes the admin state of the interface."; } leaf oper-state { type oper-state; description "This leaf describes the operational state of the interface."; } leaf interface-type { type interface-type; description "Type of interface to be used."; } leaf level { type level; description "Level associated with the interface."; } leaf passive { type empty; description "The interface is included in LSP, but does not run ISIS protocol."; } leaf three-way-handshake { type empty; Litkowski, et al. Expires April 10, 2015 [Page 60] Internet-Draft isis-cfg October 2014 description "The interface uses 3-way handshake."; } description "List of interfaces."; } description "The container defines operational parameters of interfaces."; } container adjacencies { list adjacency { leaf interface { type string; description "This leaf describes the name of the interface."; } leaf level { type level; description "This leaf describes the associated ISIS level of the interface. "; } leaf neighbor-sysid { type system-id; description "The system-id of the neighbor"; } leaf neighbor-extended-circuit-id { type extended-circuit-id; description "Circuit ID of the neighbor"; } leaf neighbor-snpa { type snpa; description "SNPA of the neighbor"; } leaf neighbor-level { type level; description "The type of the neighboring system."; } leaf hold-timer { type uint16; Litkowski, et al. Expires April 10, 2015 [Page 61] Internet-Draft isis-cfg October 2014 description "The holding time in seconds for this adjacency. This value is based on received hello PDUs and the elapsed time since receipt."; } leaf neighbor-priority { type uint8 { range "0 .. 127"; } description "Priority of the neighboring IS for becoming the DIS."; } leaf lastuptime { type yang:timestamp; description "When the adjacency most recently entered state 'up', measured in hundredths of a second since the last reinitialization of the network management subsystem. The value is 0 if the adjacency has never been in state 'up'."; } leaf state { type enumeration { enum "Up" { description "This state describes that adjacency is established."; } enum "Down" { description "This state describes that adjacency is NOT established."; } enum "Init" { description "This state describes that adjacency is establishing."; } } description "This leaf describes the state of the interface."; } description Litkowski, et al. Expires April 10, 2015 [Page 62] Internet-Draft isis-cfg October 2014 "List of operational adjacencies."; } description "This container lists the adjacencies of the local node."; } container spf-log { list event { key id; leaf id { type uint32; description "This leaf defines the event identifier. This is a purely internal value."; } leaf spf-type { type enumeration { enum full { description "Computation done is a Full SPF."; } enum incremental { description "Computation done is an incremental SPF."; } enum route-only { description "Computation done is a reachability computation only."; } } description "This leaf describes the type of computation used."; } leaf level { type level-number; description "This leaf describes the level affected by the the computation."; } leaf spf-delay { type uint32; units "milliseconds"; description Litkowski, et al. Expires April 10, 2015 [Page 63] Internet-Draft isis-cfg October 2014 "This leaf describes the SPF delay that was used for this event."; } leaf schedule-timestamp { type yang:timestamp; description "This leaf describes the timestamp when the computation was scheduled."; } leaf start-timestamp { type yang:timestamp; description "This leaf describes the timestamp when the computation was started."; } leaf end-timestamp { type yang:timestamp; description "This leaf describes the timestamp when the computation was ended."; } list trigger-lsp { key "lsp"; leaf lsp { type lsp-id; description "This leaf describes the LSPID of the LSP."; } leaf sequence { type uint32; description "This leaf describes the sequence number of the LSP."; } description "This leaf describes list of LSPs that triggered the computation."; } description "List of computation events."; } description "This container lists the SPF computation events."; } container lsp-log { list event { Litkowski, et al. Expires April 10, 2015 [Page 64] Internet-Draft isis-cfg October 2014 key id; leaf id { type uint32; description "This leaf defines the event identifier. This is a purely internal value."; } leaf level { type level-number; description "This leaf describes the level affected by the the computation."; } container lsp { leaf lsp { type lsp-id; description "This leaf describes the LSPID of the LSP."; } leaf sequence { type uint32; description "This leaf describes the sequence number of the LSP."; } description "This container describes the received LSP , in case of local LSP update the local LSP ID is referenced."; } leaf received-timestamp { type yang:timestamp; description "This leaf describes the timestamp when the LSP was received. In case of local LSP update, the timestamp refers to the local LSP update time."; } description "List of LSP events."; } Litkowski, et al. Expires April 10, 2015 [Page 65] Internet-Draft isis-cfg October 2014 description "This container lists the LSP reception events. Local LSP modification are also contained in the list."; } container database { list level-db { key level; leaf level { type level-number; description "Current level number"; } list lsp { key lsp-id; uses database; description "List of LSPs in LSDB."; } description "This container describes the list of LSPs in the level x database."; } description "This container describes ISIS Link State databases."; } container hostnames { list hostname { key system-id; leaf system-id { type system-id; description "This leaf describes the system-id associated with the hostname."; } leaf hostname { type string; description "This leaf describes the hostname associated with the system ID."; } Litkowski, et al. Expires April 10, 2015 [Page 66] Internet-Draft isis-cfg October 2014 description "List of system-id/hostname associations"; } description "This container describes the list of binding between system-id and hostnames."; } description "This container defines various ISIS states objects."; } } /* RPC methods */ rpc clear-adjacency { description "This RPC request clears a particular set of ISIS adjacencies. If the operation fails for ISIS internal reason, then error-tag and error-app-tag should be set to a meaningful value."; input { leaf routing-instance-name { type rt:routing-instance-state-ref; mandatory "true"; description "Name of the routing instance whose ISIS information is being queried. If the routing instance with name equal to the value of this parameter doesn't exist, then this operation SHALL fail with error-tag 'data-missing' and error-app-tag 'routing-instance-not-found'."; } leaf routing-protocol-instance-name { type instance-state-ref; mandatory "true"; description "Name of the ISIS protocol instance whose ISIS information is being queried. If the ISIS instance with name equal to the value of this parameter doesn't exist, then this Litkowski, et al. Expires April 10, 2015 [Page 67] Internet-Draft isis-cfg October 2014 operation SHALL fail with error-tag 'data-missing' and error-app-tag 'routing-protocol-instance-not-found'."; } leaf level { type level; description "ISIS level of the adjacency to be cleared. If ISIS level is level-1-2, both level 1 and level 2 adjacencies would be cleared. If the value provided is different from the one authorized in the enum type, then this operation SHALL fail with error-tag 'data-missing' and error-app-tag 'bad-isis-level'. "; } leaf interface { type string; description "Name of the ISIS interface. If the ISIS interface with name equal to the value of this parameter doesn't exist, then this operation SHALL fail with error-tag 'data-missing' and error-app-tag 'isis-interface-not-found'."; } } } rpc clear-database { description "This RPC request clears a particular ISIS database. If the operation fails for ISIS internal reason, then error-tag and error-app-tag should be set to a meaningful value."; input { leaf routing-instance-name { type rt:routing-instance-state-ref; mandatory "true"; description "Name of the routing instance whose ISIS information is being queried. If the routing instance with name equal to the Litkowski, et al. Expires April 10, 2015 [Page 68] Internet-Draft isis-cfg October 2014 value of this parameter doesn't exist, then this operation SHALL fail with error-tag 'data-missing' and error-app-tag 'routing-instance-not-found'."; } leaf routing-protocol-instance-name { type instance-state-ref; mandatory "true"; description "Name of the ISIS protocol instance whose ISIS information is being queried. If the ISIS instance with name equal to the value of this parameter doesn't exist, then this operation SHALL fail with error-tag 'data-missing' and error-app-tag 'routing-protocol-instance-not-found'."; } leaf level { type level; description "ISIS level of the adjacency to be cleared. If ISIS level is level-1-2, both level 1 and level 2 adjacencies would be cleared. If the value provided is different from the one authorized in the enum type, then this operation SHALL fail with error-tag 'data-missing' and error-app-tag 'bad-isis-level'. "; } } } /* Notifications */ notification database-overload { uses notification-instance-hdr; leaf overload { type enumeration { enum "off" { description Litkowski, et al. Expires April 10, 2015 [Page 69] Internet-Draft isis-cfg October 2014 "The system has left overload condition."; } enum "on" { description "The system is in overload condition."; } } description "Describes the new overload state of the instance."; } description "This notification is sent when an ISIS instance overload condition changes."; } notification lsp-too-large { uses notification-instance-hdr; uses notification-interface-hdr; leaf pdu-size { type uint32; description "Size of the PDU"; } leaf lsp-id { type lsp-id; description "LSP ID."; } description "This notification is sent when we attempt to propagate an LSP that is larger than the dataLinkBlockSize for the circuit. The notification generation must be throttled with at least a 5 second gap. "; } notification corrupted-lsp-detected { uses notification-instance-hdr; leaf lsp-id { type lsp-id; description "LSP ID."; } description "This notification is sent when we find Litkowski, et al. Expires April 10, 2015 [Page 70] Internet-Draft isis-cfg October 2014 that an LSP that was stored in memory has become corrupted. "; } notification attempt-to-exceed-max-sequence { uses notification-instance-hdr; leaf lsp-id { type lsp-id; description "LSP ID."; } description "This notification is sent when the system wraps the 32-bit sequence counter of an LSP. "; } notification id-len-mismatch { uses notification-instance-hdr; uses notification-interface-hdr; leaf pdu-field-len { type uint8; description "Size of the ID length in the received PDU"; } leaf raw-pdu { type binary; description "Received raw PDU."; } description "This notification is sent when we receive a PDU with a different value for the System ID length. The notification generation must be throttled with at least a 5 second gap. "; } notification max-area-addresses-mismatch { uses notification-instance-hdr; uses notification-interface-hdr; leaf max-area-addresses { type uint8; description "Received number of supported areas"; Litkowski, et al. Expires April 10, 2015 [Page 71] Internet-Draft isis-cfg October 2014 } leaf raw-pdu { type binary; description "Received raw PDU."; } description "This notification is sent when we receive a PDU with a different value for the Maximum Area Addresses. The notification generation must be throttled with at least a 5 second gap. "; } notification own-lsp-purge { uses notification-instance-hdr; uses notification-interface-hdr; leaf lsp-id { type lsp-id; description "LSP ID."; } description "This notification is sent when the system receives a PDU with its own system ID and zero age. "; } notification sequence-number-skipped { uses notification-instance-hdr; uses notification-interface-hdr; leaf lsp-id { type lsp-id; description "LSP ID."; } description "This notification is sent when the system receives a PDU with its own system ID and different contents. The system has to reissue the LSP with a higher sequence number. "; } notification authentication-type-failure { uses notification-instance-hdr; uses notification-interface-hdr; leaf raw-pdu { Litkowski, et al. Expires April 10, 2015 [Page 72] Internet-Draft isis-cfg October 2014 type binary; description "Received raw PDU."; } description "This notification is sent when the system receives a PDU with the wrong authentication type field. The notification generation must be throttled with at least a 5 second gap. "; } notification authentication-failure { uses notification-instance-hdr; uses notification-interface-hdr; leaf raw-pdu { type binary; description "Received raw PDU."; } description "This notification is sent when the system receives a PDU with the wrong authentication information. The notification generation must be throttled with at least a 5 second gap. "; } notification version-skew { uses notification-instance-hdr; uses notification-interface-hdr; leaf protocol-version { type uint8; description "Protocol version received in the PDU."; } leaf raw-pdu { type binary; description "Received raw PDU."; } description "This notification is sent when the system receives a PDU with a different protocol version number. The notification generation must be throttled with at least Litkowski, et al. Expires April 10, 2015 [Page 73] Internet-Draft isis-cfg October 2014 a 5 second gap. "; } notification area-mismatch { uses notification-instance-hdr; uses notification-interface-hdr; leaf raw-pdu { type binary; description "Received raw PDU."; } description "This notification is sent when the system receives a Hello PDU from an IS that does not share any area address. The notification generation must be throttled with at least a 5 second gap. "; } notification rejected-adjacency { uses notification-instance-hdr; uses notification-interface-hdr; leaf raw-pdu { type binary; description "Received raw PDU."; } leaf reason { type string; description "The system may provide a reason to reject the adjacency. If the reason is not available, the system use an empty string."; } description "This notification is sent when the system receives a Hello PDU from an IS but does not establish an adjacency for some reason. The notification generation must be throttled with at least a 5 second gap. "; } notification protocols-supported-mismatch { uses notification-instance-hdr; Litkowski, et al. Expires April 10, 2015 [Page 74] Internet-Draft isis-cfg October 2014 uses notification-interface-hdr; leaf raw-pdu { type binary; description "Received raw PDU."; } leaf-list protocols { type uint8; description "The list of protocols supported by the remote system."; } description "This notification is sent when the system receives a non pseudonode LSP that has no matching protocol supported. The notification generation must be throttled with at least a 5 second gap. "; } notification lsp-error-detected { uses notification-instance-hdr; uses notification-interface-hdr; leaf lsp-id { type lsp-id; description "LSP ID."; } leaf raw-pdu { type binary; description "Received raw PDU."; } leaf error-offset { type uint32; description "If the problem is a malformed TLV, the error-offset points to the start of the TLV. If the problem is with the LSP header, the error-offset points to the suspicious byte"; } leaf tlv-type { type uint8; description "if the problem is a malformed TLV, the tlv-type is set to the type value of the suspicious TLV. Otherwise this leaf is not present."; Litkowski, et al. Expires April 10, 2015 [Page 75] Internet-Draft isis-cfg October 2014 } description "This notification is sent when the system receives a LSP with a parse error. The notification generation must be throttled with at least a 5 second gap. "; } notification adjacency-change { uses notification-instance-hdr; uses notification-interface-hdr; leaf neighbor { type string; description "Describes the name of the neighbor. If the name of the neighbor is not available, the field would be empty."; } leaf neighbor-system-id { type system-id; description "Describes the system-id of the neighbor."; } leaf level { type level; description "Describes the ISIS level of the adjacency."; } leaf state { type enumeration { enum "Up" { description "This state describes that adjacency is established."; } enum "Down" { description "This state describes that adjacency is no more established."; } } description "This leaf describes the new state of the ISIS adjacency."; } leaf reason { type string; Litkowski, et al. Expires April 10, 2015 [Page 76] Internet-Draft isis-cfg October 2014 description "If the adjacency is going to DOWN, this leaf provides a reason for the adjacency going down. The reason is provided as a text. If the adjacency is going to UP, no reason is provided."; } description "This notification is sent when an ISIS adjacency moves to Up state or to Down state."; } notification lsp-received { uses notification-instance-hdr; uses notification-interface-hdr; leaf lsp-id { type lsp-id; description "LSP ID."; } leaf sequence { type uint32; description "Sequence number of the received LSP."; } leaf received-timestamp { type yang:timestamp; description "This leaf describes the timestamp when the LSP was received. "; } leaf neighbor-system-id { type system-id; description "Describes the system-id of the neighbor that sent the LSP."; } description "This notification is sent when a LSP is received. The notification generation must be throttled with at least a 5 second gap. "; } notification lsp-generation { uses notification-instance-hdr; Litkowski, et al. Expires April 10, 2015 [Page 77] Internet-Draft isis-cfg October 2014 leaf lsp-id { type lsp-id; description "LSP ID."; } leaf sequence { type uint32; description "Sequence number of the received LSP."; } leaf send-timestamp { type yang:timestamp; description "This leaf describes the timestamp when our LSP was regenerated. "; } description "This notification is sent when a LSP is regenerated. The notification generation must be throttled with at least a 5 second gap. "; } } 7. Security Considerations Configuration and state data defined in this document are designed to be accessed via the NETCONF protocol [RFC6241]. As ISIS is an IGP protocol (critical piece of the network), ensuring stability and security of the protocol is mandatory for the network service. Authors recommends to implement NETCONF access control model ([RFC6536]) to restrict access to all or part of the configuration to specific users. Access control to RPCs is also critical as RPC permits to clear protocol datastructures that would definitively impact the network service. This kind of RPC needs only to be used in specific cases by well-known experienced users. Authors consider that all the configuration is considered as sensitive/vulnerable as well as RPCs. But security teams can decide to open some part of the configuration to less experienced users depending on the internal organization, for example: Litkowski, et al. Expires April 10, 2015 [Page 78] Internet-Draft isis-cfg October 2014 o User FullWrite: would access to the whole data model. This kind of profile may be restricted to few experienced people. o User PartialWrite: would only access to configuration part within /isis/interfaces/interface. So this kind of profile is restricted to creation/modification/deletion of interfaces. This profile does not have access to RPC. o User Read: would only access to state part /isis-state. Unauthorized access to configuration or RPC may cause high damages to the network service. The /isis-state/database may contain authentication information. As presented in the description of the /isis-state/database/level- 1/lsp/authentication/authentication-key, the authentication MUST never be presented in plaintext format for security reason. Authors recommends the usage of MD5 to present the authentication-key. Some authentication-key may also be present in the /isis configuration. When configuring ISIS using the NETCONF protocol, authors recommends the usage of secure transport of NETCONF using SSH ([RFC6242]). 8. Contributors Authors would like to thank Kiran Agrahara Sreenivasa, Dean Bogdanovic, Yingzhen Qu, Yi Yang for their major contributions to the draft. 9. Acknowledgements TBD. 10. IANA Considerations TBD. 11. Normative References [I-D.ietf-netmod-routing-cfg] Lhotka, L., "A YANG Data Model for Routing Management", draft-ietf-netmod-routing-cfg-15 (work in progress), May 2014. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. Litkowski, et al. Expires April 10, 2015 [Page 79] Internet-Draft isis-cfg October 2014 [RFC6020] Bjorklund, M., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, October 2010. [RFC6241] Enns, R., Bjorklund, M., Schoenwaelder, J., and A. Bierman, "Network Configuration Protocol (NETCONF)", RFC 6241, June 2011. [RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure Shell (SSH)", RFC 6242, June 2011. [RFC6536] Bierman, A. and M. Bjorklund, "Network Configuration Protocol (NETCONF) Access Control Model", RFC 6536, March 2012. Appendix A. Example: NETCONF Reply This section gives an example of a reply to the NETCONF request for a device that implements the data model defined in this document. The example is written in XML. TODO Authors' Addresses Stephane Litkowski Orange Email: stephane.litkowski@orange.com Derek Yeung Cisco Systems Email: myeung@cisco.com Acee Lindem Cisco Systems Email: acee@cisco.com Jeffrey Zhang Juniper Networks Email: zzhang@juniper.net Litkowski, et al. Expires April 10, 2015 [Page 80] Internet-Draft isis-cfg October 2014 Ladislav Lhotka Email: lhotka@nic.cz Litkowski, et al. Expires April 10, 2015 [Page 81]