BGP based Virtual Private Network (VPN) Services over SRm6 enabled IPv6 networks
draft-ssangli-bess-bgp-vpn-srm6-00
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IDR S. Sangli
Internet-Draft R. Bonica
Intended status: Standards Track Juniper Networks Inc.
Expires: July 27, 2020 January 24, 2020
BGP based Virtual Private Network (VPN) Services over SRm6 enabled IPv6
networks
draft-ssangli-bess-bgp-vpn-srm6-00
Abstract
This document defines BGP protocol extensions for encoding and
carrying SRm6 Per-Path Service Instruction information 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 Per-Path Service Instruction
information is encoded in the IPv6 Destination Option Header in the
IPv6 data packets.
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
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on July 27, 2020.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
Sangli & Bonica Expires July 27, 2020 [Page 1]
Internet-DraftBGP based VPN Services over SRm6 enabled IPv6 January 2020
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
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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