OSPF Link Traffic Engineering (TE) Attribute Reuse
draft-ietf-ospf-te-link-attr-reuse-07

Document Type Active Internet-Draft (lsr WG)
Last updated 2019-04-11
Replaces draft-ppsenak-ospf-te-link-attr-reuse
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LSR Working Group                                         P. Psenak, Ed.
Internet-Draft                                               L. Ginsberg
Intended status: Standards Track                           Cisco Systems
Expires: October 13, 2019                                  W. Henderickx
                                                                   Nokia
                                                             J. Tantsura
                                                                  Apstra
                                                                J. Drake
                                                        Juniper Networks
                                                          April 11, 2019

           OSPF Link Traffic Engineering (TE) Attribute Reuse
               draft-ietf-ospf-te-link-attr-reuse-07.txt

Abstract

   Various link attributes have been defined in OSPF in the context of
   the MPLS Traffic Engineering (TE) and GMPLS.  Many of these link
   attributes can be used for applications other than MPLS Traffic
   Engineering or GMPLS.  This document defines how to distribute such
   attributes in OSPFv2 and OSPFv3 for applications other than MPLS
   Traffic Engineering or GMPLS.

Status of This Memo

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   This document is subject to BCP 78 and the IETF Trust's Legal
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Psenak, et al.          Expires October 13, 2019                [Page 1]
Internet-Draft        OSPF Link TE Attributes Reuse           April 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements notation . . . . . . . . . . . . . . . . . .   3
   2.  Advertisement of Link Attributes  . . . . . . . . . . . . . .   3
     2.1.  OSPFv2 Extended Link Opaque LSA and OSPFv3 E-Router-LSA .   4
   3.  Advertisement of Application Specific Values  . . . . . . . .   5
   4.  Reused TE link attributes . . . . . . . . . . . . . . . . . .   8
     4.1.  Shared Risk Link Group (SRLG) . . . . . . . . . . . . . .   8
     4.2.  Extended Metrics  . . . . . . . . . . . . . . . . . . . .   8
     4.3.  Administrative Group  . . . . . . . . . . . . . . . . . .   9
     4.4.  Traffic Engineering Metric  . . . . . . . . . . . . . . .   9
   5.  Maximum Link Bandwidth  . . . . . . . . . . . . . . . . . . .  10
   6.  Local Interface IPv6 Address Sub-TLV  . . . . . . . . . . . .  10
   7.  Remote Interface IPv6 Address Sub-TLV . . . . . . . . . . . .  10
   8.  Deployment Considerations . . . . . . . . . . . . . . . . . .  11
   9.  Attribute Advertisements and Enablement . . . . . . . . . . .  11
   10. Backward Compatibility  . . . . . . . . . . . . . . . . . . .  12
   11. Security Considerations . . . . . . . . . . . . . . . . . . .  12
   12. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
     12.1.  OSPFv2 . . . . . . . . . . . . . . . . . . . . . . . . .  13
     12.2.  OSPFv3 . . . . . . . . . . . . . . . . . . . . . . . . .  13
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