BGP based Virtual Private Network (VPN) Services over SRm6 enabled IPv6 networks
draft-ssangli-bess-bgp-vpn-srm6-01

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Last updated 2020-03-10 (latest revision 2020-03-09)
Replaces draft-ssangli-idr-bgp-vpn-srv6-plus
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IDR                                                            S. Sangli
Internet-Draft                                                 R. Bonica
Intended status: Standards Track                   Juniper Networks Inc.
Expires: September 10, 2020                               March 09, 2020

BGP based Virtual Private Network (VPN) Services over SRm6 enabled IPv6
                                networks
                   draft-ssangli-bess-bgp-vpn-srm6-01

Abstract

   This document defines BGP protocol extensions for encoding and
   carrying SRm6 Tunnel Payload Forwarding information (TPF) to support
   Virtual Private Network services.  This is applicable when the VPN
   services are offered in a SRm6 enabled IPv6 network such that the VPN
   payload is transported over IPv6.  The Tunnel Payload Information is
   encoded in the IPv6 Destination Option Header in the IPv6 data
   packets.

Status of This Memo

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   This Internet-Draft will expire on September 10, 2020.

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Sangli & Bonica        Expires September 10, 2020               [Page 1]
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   3.  Per-Path Service Instruction Information  . . . . . . . . . .   3
   4.  Usage of Tunnel Encapsulation Attribute . . . . . . . . . . .   4
   5.  Procedures for Egress BGP Speaker . . . . . . . . . . . . . .   6
   6.  Procedures for Ingress BGP Speaker  . . . . . . . . . . . . .   7
   7.  BGP Nexthop and Tunnel Endpoint address handling
       procedures  . . . . . . . . . . . . . . . . . . . . . . . . .   7
   8.  BGP based L3 VPN services over IPv6 . . . . . . . . . . . . .   8
     8.1.  IPv4 VPN on SRm6 enabled IPv6 Core  . . . . . . . . . . .   8
     8.2.  IPv6 VPN on SRm6 enabled IPv6 Core  . . . . . . . . . . .   8
     8.3.  IPv4 Global Routes on SRm6 enabled IPv6 Core  . . . . . .   9
   9.  BGP based Ethernet VPN services over IPv6 . . . . . . . . . .   9
     9.1.  Ethernet Per ES Auto-Discovery (A-D) route  . . . . . . .  10
     9.2.  Ethernet per EVI Auto-Discovery (A-D) route . . . . . . .  10
     9.3.  MAC/IP Advertisement route  . . . . . . . . . . . . . . .  11
     9.4.  Inclusive Multicast Ethernet Route  . . . . . . . . . . .  11
     9.5.  IP Prefix Route . . . . . . . . . . . . . . . . . . . . .  12
   10. Deployment Considerations . . . . . . . . . . . . . . . . . .  12
   11. Backward Compatibility  . . . . . . . . . . . . . . . . . . .  13
   12. Security Considerations . . . . . . . . . . . . . . . . . . .  14
   13. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   14. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   15. References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     15.1.  Normative References . . . . . . . . . . . . . . . . . .  14
     15.2.  Informative References . . . . . . . . . . . . . . . . .  15
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction

   Virtual Private Network (VPN) technologies allow network providers to
   emulate private networks with shared infrastructure.  For example,
   assume that a set of red sites, set of blue sites and a set of green
   sites connect to a provider network.  Furthermore, assume that red
   sites and blue sites wish to interconnect, exchange packets.
   However, the green sites wish to communicate with green sites only.
   The provider should allow its infrastructure network to scale to both
   the requirements without having to create multiple parallel network
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