IS-IS Extensions to Support Segment Routing over IPv6 Dataplane
draft-bashandy-isis-srv6-extensions-00

Document Type Active Internet-Draft (individual)
Last updated 2017-03-10
Replaces draft-previdi-isis-ipv6-prefix-sid
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Network Working Group                                  A. Bashandy, Ed.
Internet Draft                                              C. Filsfils
Intended status: Standard Track                             L. Ginsberg
Expires: September 2017                                   Cisco Systems
                                                         Bruno Decraene
                                                                 Orange
                                                         March 10, 2017

     IS-IS Extensions to Support Segment Routing over IPv6 Dataplane
                 draft-bashandy-isis-srv6-extensions-00

Abstract

Segment Routing (SR) allows for a flexible definition of end-to-end
paths by encoding paths as sequences of topological sub-paths, called
"segments".  Segment routing architecture can be implemented over an
MPLS data plane as well as an IPv6 data plane. This draft describes
the IS-IS extensions required to support Segment Routing over an IPv6
data plane.

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Previdi               Expires September 10, 2017               [Page 1]
Internet-Draft                 SRv6 SID                      March 2017

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Table of Contents

   1. Introduction...................................................3
      1.1. Conventions used in this document.........................3
   2. SRv6-Capabilities sub-TLV......................................4
   3. SRv6-function Descriptor.......................................6
   4. SRv6-SID TLV...................................................7
   5. Function Code points...........................................8
   6. Advertising SRv6 SIDs associated with a Neighbor...............8
      6.1. P2P SRv6 X-SID sub-TLV....................................9
      6.2. LAN SRv6 X-SID sub-TLV...................................10
   7. IANA Considerations...........................................11
      7.1. SRv6 SID TLV and sub-TLVs................................11
      7.2. IS-IS SRv6-functions Codepoints Registry.................12
      7.3. SRv6 Capabilities sub-TLV................................12
      7.4. P2P SRv6 X-SID and LAN SRv6 X-SID sub-TLVs...............12
      7.5. IS-IS SRv6 X-SID sub-sub-TLV Codepoints Registry.........13
   8. Security Considerations.......................................13
   9. Contributors..................................................13
   10. References...................................................14
      10.1. Normative References....................................14
      10.2. Informative References..................................15
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