YANG Data Model for IS-IS Segment Routing
draft-ietf-isis-sr-yang-08
The information below is for an old version of the document.
| Document | Type |
This is an older version of an Internet-Draft whose latest revision state is "Active".
|
|
|---|---|---|---|
| Authors | Stephane Litkowski , Yingzhen Qu , Pushpasis Sarkar , Ing-Wher (Helen) Chen , Jeff Tantsura | ||
| Last updated | 2020-07-12 | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Formats | |||
| Reviews |
YANGDOCTORS Last Call review
(of
-19)
by Reshad Rahman
Ready w/issues
YANGDOCTORS Last Call review
(of
-13)
by Jan Lindblad
Ready w/issues
|
||
| Additional resources | Mailing list discussion | ||
| Stream | WG state | WG Document | |
| Document shepherd | Christian Hopps | ||
| IESG | IESG state | I-D Exists | |
| Consensus boilerplate | Unknown | ||
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | Christian Hopps <chopps@chopps.org> |
draft-ietf-isis-sr-yang-08
" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol configuration
with segment routing.";
uses sr-mpls:sr-controlplane;
container protocol-srgb {
if-feature sr-mpls:protocol-srgb;
uses sr-cmn:srgb;
description
"Per-protocol SRGB.";
}
}
augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:interfaces/isis:interface" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol configuration
with segment routing.";
uses sr-mpls:igp-interface;
}
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augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:interfaces/isis:interface"+
"/isis:fast-reroute" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS IP FRR with TILFA.";
container ti-lfa {
if-feature ti-lfa;
leaf enable {
type boolean;
description
"Enables TI-LFA computation.";
}
description
"TILFA configuration.";
}
}
augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:interfaces/isis:interface"+
"/isis:fast-reroute/isis:lfa/isis:remote-lfa" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS remoteLFA config with
use of segment-routing path.";
leaf use-segment-routing-path {
if-feature remote-lfa-sr;
type boolean;
description
"force remote LFA to use segment routing
path instead of LDP path.";
}
}
/* Operational states */
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augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:interfaces/isis:interface" +
"/isis:adjacencies/isis:adjacency" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol configuration
with segment routing.";
uses adjacency-state;
}
augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:database/isis:levels/isis:lsp"+
"/isis:router-capabilities" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol LSDB router capability.";
uses sr-capability;
uses sr-algorithm;
uses srlb;
uses srms-preference;
}
augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:database/isis:levels/isis:lsp"+
"/isis:extended-is-neighbor/isis:neighbor" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol LSDB neighbor.";
uses adjacency-segment-id;
}
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augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:database/isis:levels/isis:lsp"+
"/isis:mt-is-neighbor/isis:neighbor" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol LSDB neighbor.";
uses adjacency-segment-id;
}
augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:database/isis:levels/isis:lsp"+
"/isis:extended-ipv4-reachability/isis:prefixes" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol LSDB prefix.";
uses prefix-segment-id;
}
augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:database/isis:levels/isis:lsp"+
"/isis:mt-extended-ipv4-reachability/isis:prefixes" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol LSDB prefix.";
uses prefix-segment-id;
}
augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:database/isis:levels/isis:lsp"+
"/isis:ipv6-reachability/isis:prefixes" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
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description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol LSDB prefix.";
uses prefix-segment-id;
}
augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:database/isis:levels/isis:lsp"+
"/isis:mt-ipv6-reachability/isis:prefixes" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol LSDB prefix.";
uses prefix-segment-id;
}
augment "/rt:routing/" +
"rt:control-plane-protocols/rt:control-plane-protocol"+
"/isis:isis/isis:database/isis:levels/isis:lsp" {
when "/rt:routing/rt:control-plane-protocols/"+
"rt:control-plane-protocol/rt:type = 'isis:isis'" {
description
"This augment ISIS routing protocol when used";
}
description
"This augments ISIS protocol LSDB.";
uses segment-routing-binding-tlv;
}
/* Notifications */
}
<CODE ENDS>
7. Security Considerations
Configuration and state data defined in this document are designed to
be accessed via the NETCONF protocol [RFC6241].
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As IS-IS 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.
8. Contributors
Authors would like to thank Derek Yeung, Acee Lindem, Yi Yang for
their major contributions to the draft.
9. Acknowledgements
MITRE has approved this document for Public Release, Distribution
Unlimited, with Public Release Case Number 19-3033.
10. IANA Considerations
The IANA is requested to assign two new URIs from the IETF XML
registry ([RFC3688]). Authors are suggesting the following URI:
URI: urn:ietf:params:xml:ns:yang:ietf-isis-sr
Registrant Contact: IS-IS WG
XML: N/A, the requested URI is an XML namespace
This document also requests one new YANG module name in the YANG
Module Names registry ([RFC6020]) with the following suggestion :
name: ietf-isis-sr
namespace: urn:ietf:params:xml:ns:yang:ietf-isis-sr
prefix: isis-sr
reference: RFC XXXX
11. Change log for ietf-isis-sr YANG module
11.1. From version -03 to version -04
o Fixed yang module indentations.
11.2. From version -02 to version -03
o Change address-family type according to routing types.
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11.3. From isis-sr document version -01 to version -02
o NMDA compliancy.
o Added SRLB in configuration and LSDB.
o Added SR capability in LSDB.
o Added SR algorithms in LSDB.
o Added SRMS preference in LSDB.
o Alignment with iana-rt-types module.
o Align binding SID with draft-ietf-isis-segment-routing-extensions-
13.
11.4. From isis-sr document version -00 to version -01
o Added P-Flag in Adj-SID.
11.5. From isis document version -12 to isis-sr document version -00
o Separate document for IS-IS SR extensions.
11.6. From isis document version -12 to version -13
o Align with new segment routing common module.
11.7. From isis document version -09 to version -11
o Fixed XPATH in 'when' expressions.
11.8. From isis document version -08 to version -09
o Align to draft-ietf-netmod-routing-cfg-23.
11.9. From isis document version -07 to version -08
o Align to draft-ietf-netmod-routing-cfg-21.
12. Normative References
[I-D.ietf-isis-yang-isis-cfg]
Litkowski, S., Yeung, D., Lindem, A., Zhang, Z., and L.
Lhotka, "YANG Data Model for IS-IS Protocol", draft-ietf-
isis-yang-isis-cfg-42 (work in progress), October 2019.
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[I-D.ietf-spring-sr-yang]
Litkowski, S., Qu, Y., Sarkar, P., and J. Tantsura, "YANG
Data Model for Segment Routing", draft-ietf-spring-sr-
yang-15 (work in progress), December 2017.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
DOI 10.17487/RFC3688, January 2004,
<https://www.rfc-editor.org/info/rfc3688>.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
DOI 10.17487/RFC6020, October 2010,
<https://www.rfc-editor.org/info/rfc6020>.
[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
and A. Bierman, Ed., "Network Configuration Protocol
(NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
<https://www.rfc-editor.org/info/rfc6241>.
[RFC6536] Bierman, A. and M. Bjorklund, "Network Configuration
Protocol (NETCONF) Access Control Model", RFC 6536,
DOI 10.17487/RFC6536, March 2012,
<https://www.rfc-editor.org/info/rfc6536>.
[RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language",
RFC 7950, DOI 10.17487/RFC7950, August 2016,
<https://www.rfc-editor.org/info/rfc7950>.
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/info/rfc8174>.
[RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams",
BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018,
<https://www.rfc-editor.org/info/rfc8340>.
[RFC8342] Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K.,
and R. Wilton, "Network Management Datastore Architecture
(NMDA)", RFC 8342, DOI 10.17487/RFC8342, March 2018,
<https://www.rfc-editor.org/info/rfc8342>.
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[RFC8667] Previdi, S., Ed., Ginsberg, L., Ed., Filsfils, C.,
Bashandy, A., Gredler, H., and B. Decraene, "IS-IS
Extensions for Segment Routing", RFC 8667,
DOI 10.17487/RFC8667, December 2019,
<https://www.rfc-editor.org/info/rfc8667>.
Authors' Addresses
Stephane Litkowski
Cisco Systems
Email: slitkows.ietf@gmail.com
Yinghzen Qu
Futurewei
Email: yingzhen.qu@futurewei.com
Pushpasis Sarkar
Individual
Email: pushpasis.ietf@gmail.com
Ing-Wher Chen
The MITRE Corporation
Email: ingwherchen@mitre.org
Jeff Tantsura
Apstra
Email: jefftant.ietf@gmail.com
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