SRv6 BGP based Overlay services
draft-ietf-bess-srv6-services-02

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Document Type Active Internet-Draft (bess WG)
Last updated 2020-02-28 (latest revision 2019-11-04)
Replaces draft-dawra-bess-srv6-services
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BESS Working Group                                         G. Dawra, Ed.
Internet-Draft                                                  LinkedIn
Intended status: Standards Track                             C. Filsfils
Expires: August 30, 2020                                   Cisco Systems
                                                               R. Raszuk
                                                            Bloomberg LP
                                                             B. Decraene
                                                                  Orange
                                                               S. Zhuang
                                                     Huawei Technologies
                                                              J. Rabadan
                                                                   Nokia
                                                       February 27, 2020

                    SRv6 BGP based Overlay services
                    draft-ietf-bess-srv6-services-02

Abstract

   This draft defines procedures and messages for SRv6-based BGP
   services including L3VPN, EVPN and Internet services.  It builds on
   RFC4364 "BGP/MPLS IP Virtual Private Networks (VPNs)" and RFC7432
   "BGP MPLS-Based Ethernet VPN".

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
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   This Internet-Draft will expire on August 30, 2020.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Dawra, et al.            Expires August 30, 2020                [Page 1]
Internet-Draft       SRv6 BGP based Overlay Services       February 2020

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  SRv6 Services TLVs  . . . . . . . . . . . . . . . . . . . . .   4
   3.  SRv6 Service Sub-TLVs . . . . . . . . . . . . . . . . . . . .   5
     3.1.  SRv6 SID Information Sub-TLV  . . . . . . . . . . . . . .   6
     3.2.  SRv6 Service Data Sub-Sub-TLVs  . . . . . . . . . . . . .   7
       3.2.1.  SRv6 SID Structure Sub-Sub-TLV  . . . . . . . . . . .   7
   4.  Encoding SRv6 SID information . . . . . . . . . . . . . . . .   9
   5.  BGP based L3 service over SRv6  . . . . . . . . . . . . . . .  10
     5.1.  IPv4 VPN Over SRv6 Core . . . . . . . . . . . . . . . . .  11
     5.2.  IPv6 VPN Over SRv6 Core . . . . . . . . . . . . . . . . .  11
     5.3.  Global IPv4 over SRv6 Core  . . . . . . . . . . . . . . .  12
     5.4.  Global IPv6 over SRv6 Core  . . . . . . . . . . . . . . .  12
   6.  BGP based Ethernet VPN (EVPN) over SRv6 . . . . . . . . . . .  12
     6.1.  Ethernet Auto-discovery route over SRv6 Core  . . . . . .  13
       6.1.1.  Per-ES A-D route  . . . . . . . . . . . . . . . . . .  13
       6.1.2.  Per-EVI A-D route . . . . . . . . . . . . . . . . . .  14
     6.2.  MAC/IP Advertisement route over SRv6 Core . . . . . . . .  14
       6.2.1.  MAC/IP Advertisement route with MAC Only  . . . . . .  15
       6.2.2.  MAC/IP Advertisement route with MAC+IP  . . . . . . .  16
     6.3.  Inclusive Multicast Ethernet Tag Route over SRv6 Core . .  16
     6.4.  Ethernet Segment route over SRv6 Core . . . . . . . . . .  18
     6.5.  IP prefix route over SRv6 Core  . . . . . . . . . . . . .  18
     6.6.  EVPN multicast routes (Route Types 6, 7, 8) over SRv6
           core  . . . . . . . . . . . . . . . . . . . . . . . . . .  19
   7.  Implementation Status . . . . . . . . . . . . . . . . . . . .  19
   8.  Error Handling  . . . . . . . . . . . . . . . . . . . . . . .  19
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
     9.1.  BGP Prefix-SID TLV Types registry . . . . . . . . . . . .  20
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