draft-ietf-ospf-te-link-attr-reuse-07.txt   draft-ietf-ospf-te-link-attr-reuse-08.txt 
LSR Working Group P. Psenak, Ed. LSR Working Group P. Psenak, Ed.
Internet-Draft L. Ginsberg Internet-Draft L. Ginsberg
Intended status: Standards Track Cisco Systems Intended status: Standards Track Cisco Systems
Expires: October 13, 2019 W. Henderickx Expires: February 20, 2020 W. Henderickx
Nokia Nokia
J. Tantsura J. Tantsura
Apstra Apstra
J. Drake J. Drake
Juniper Networks Juniper Networks
April 11, 2019 August 19, 2019
OSPF Link Traffic Engineering (TE) Attribute Reuse OSPF Link Traffic Engineering (TE) Attribute Reuse
draft-ietf-ospf-te-link-attr-reuse-07.txt draft-ietf-ospf-te-link-attr-reuse-08.txt
Abstract Abstract
Various link attributes have been defined in OSPF in the context of Various link attributes have been defined in OSPF in the context of
the MPLS Traffic Engineering (TE) and GMPLS. Many of these link the MPLS Traffic Engineering (TE) and GMPLS. Many of these link
attributes can be used for applications other than MPLS Traffic attributes can be used for applications other than MPLS Traffic
Engineering or GMPLS. This document defines how to distribute such Engineering or GMPLS. This document defines how to distribute such
attributes in OSPFv2 and OSPFv3 for applications other than MPLS attributes in OSPFv2 and OSPFv3 for applications other than MPLS
Traffic Engineering or GMPLS. Traffic Engineering or GMPLS.
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Copyright Notice Copyright Notice
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Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements notation . . . . . . . . . . . . . . . . . . 3 1.1. Requirements notation . . . . . . . . . . . . . . . . . . 3
2. Advertisement of Link Attributes . . . . . . . . . . . . . . 3 2. Advertisement of Link Attributes . . . . . . . . . . . . . . 3
2.1. OSPFv2 Extended Link Opaque LSA and OSPFv3 E-Router-LSA . 4 2.1. OSPFv2 Extended Link Opaque LSA and OSPFv3 E-Router-LSA . 3
3. Advertisement of Application Specific Values . . . . . . . . 5 3. Advertisement of Application Specific Values . . . . . . . . 4
4. Reused TE link attributes . . . . . . . . . . . . . . . . . . 8 4. Reused TE link attributes . . . . . . . . . . . . . . . . . . 7
4.1. Shared Risk Link Group (SRLG) . . . . . . . . . . . . . . 8 4.1. Shared Risk Link Group (SRLG) . . . . . . . . . . . . . . 7
4.2. Extended Metrics . . . . . . . . . . . . . . . . . . . . 8 4.2. Extended Metrics . . . . . . . . . . . . . . . . . . . . 8
4.3. Administrative Group . . . . . . . . . . . . . . . . . . 9 4.3. Administrative Group . . . . . . . . . . . . . . . . . . 9
4.4. Traffic Engineering Metric . . . . . . . . . . . . . . . 9 4.4. Traffic Engineering Metric . . . . . . . . . . . . . . . 9
5. Maximum Link Bandwidth . . . . . . . . . . . . . . . . . . . 10 5. Maximum Link Bandwidth . . . . . . . . . . . . . . . . . . . 9
6. Local Interface IPv6 Address Sub-TLV . . . . . . . . . . . . 10 6. Local Interface IPv6 Address Sub-TLV . . . . . . . . . . . . 10
7. Remote Interface IPv6 Address Sub-TLV . . . . . . . . . . . . 10 7. Remote Interface IPv6 Address Sub-TLV . . . . . . . . . . . . 10
8. Deployment Considerations . . . . . . . . . . . . . . . . . . 11 8. Deployment Considerations . . . . . . . . . . . . . . . . . . 10
9. Attribute Advertisements and Enablement . . . . . . . . . . . 11 9. Attribute Advertisements and Enablement . . . . . . . . . . . 11
10. Backward Compatibility . . . . . . . . . . . . . . . . . . . 12 10. Backward Compatibility . . . . . . . . . . . . . . . . . . . 12
11. Security Considerations . . . . . . . . . . . . . . . . . . . 12 11. Security Considerations . . . . . . . . . . . . . . . . . . . 12
12. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 13 12. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 13
12.1. OSPFv2 . . . . . . . . . . . . . . . . . . . . . . . . . 13 12.1. OSPFv2 . . . . . . . . . . . . . . . . . . . . . . . . . 13
12.2. OSPFv3 . . . . . . . . . . . . . . . . . . . . . . . . . 13 12.2. OSPFv3 . . . . . . . . . . . . . . . . . . . . . . . . . 13
13. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 14 13. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 14
14. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 15 14. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 15
15. References . . . . . . . . . . . . . . . . . . . . . . . . . 15 15. References . . . . . . . . . . . . . . . . . . . . . . . . . 15
15.1. Normative References . . . . . . . . . . . . . . . . . . 15 15.1. Normative References . . . . . . . . . . . . . . . . . . 15
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15.2. Informative References 15.2. Informative References
[I-D.ietf-isis-te-app] [I-D.ietf-isis-te-app]
Ginsberg, L., Psenak, P., Previdi, S., Henderickx, W., and Ginsberg, L., Psenak, P., Previdi, S., Henderickx, W., and
J. Drake, "IS-IS TE Attributes per application", draft- J. Drake, "IS-IS TE Attributes per application", draft-
ietf-isis-te-app-06 (work in progress), April 2019. ietf-isis-te-app-06 (work in progress), April 2019.
[I-D.ietf-lsr-flex-algo] [I-D.ietf-lsr-flex-algo]
Psenak, P., Hegde, S., Filsfils, C., Talaulikar, K., and Psenak, P., Hegde, S., Filsfils, C., Talaulikar, K., and
A. Gulko, "IGP Flexible Algorithm", draft-ietf-lsr-flex- A. Gulko, "IGP Flexible Algorithm", draft-ietf-lsr-flex-
algo-01 (work in progress), November 2018. algo-03 (work in progress), July 2019.
[RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328, [RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328,
DOI 10.17487/RFC2328, April 1998, DOI 10.17487/RFC2328, April 1998,
<https://www.rfc-editor.org/info/rfc2328>. <https://www.rfc-editor.org/info/rfc2328>.
[RFC4203] Kompella, K., Ed. and Y. Rekhter, Ed., "OSPF Extensions in [RFC4203] Kompella, K., Ed. and Y. Rekhter, Ed., "OSPF Extensions in
Support of Generalized Multi-Protocol Label Switching Support of Generalized Multi-Protocol Label Switching
(GMPLS)", RFC 4203, DOI 10.17487/RFC4203, October 2005, (GMPLS)", RFC 4203, DOI 10.17487/RFC4203, October 2005,
<https://www.rfc-editor.org/info/rfc4203>. <https://www.rfc-editor.org/info/rfc4203>.
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