Deployment Guidelines for Edge Peering IPv4-NLRI with IPv6-NH
draft-mishra-bess-deployment-guide-ipv4nlri-ipv6nh-03

Document Type Active Internet-Draft (individual)
Authors Gyan Mishra  , Mankamana Mishra  , Jeff Tantsura  , Lili Wang  , Qing Yang  , Adam Simpson  , Shuanglong Chen 
Last updated 2021-04-09
Stream (None)
Intended RFC status (None)
Formats plain text xml pdf htmlized (tools) htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
BESS Working Group                                             G. Mishra
Internet-Draft                                              Verizon Inc.
Intended status: Best Current Practice                         M. Mishra
Expires: October 11, 2021                                  Cisco Systems
                                                             J. Tantsura
                                                                 L. Wang
                                                  Juniper Networks, Inc.
                                                                 Q. Yang
                                                         Arista Networks
                                                              A. Simpson
                                                                   Nokia
                                                                 S. Chen
                                                     Huawei Technologies
                                                           April 9, 2021

     Deployment Guidelines for Edge Peering IPv4-NLRI with IPv6-NH
         draft-mishra-bess-deployment-guide-ipv4nlri-ipv6nh-03

Abstract

   As Enterprises and Service Providers upgrade their brown field or
   green field MPLS/SR core to an IPv6 transport, Multiprotocol BGP (MP-
   BGP)now plays an important role in the transition of the core as well
   as an edge from IPv4 to IPv6.  Operators can now continue to support
   the legacy IPv4, Virtual Private Network (VPN)-IPv4, and Multicast
   VPN-IPv4 customers.

   This document describes the critical use case and OPEX savings of
   being able to leverage the MP-BGP capability exchange usage as a pure
   transport, allowing both IPv4 and IPv6 to be carried over the same
   (Border Gateway Protocol) BGP TCP session.  By doing so, provides for
   the elimination of Dual Stacking on the Provider Edge - Customer Edge
   connections.  Thus making the eBGP peering IPv6-ONLY to now carry
   both IPv4 and IPv6 Network Layer Reachability Information (NLRI).

   This document now provides a solution for Internet Exchange Point
   (IXP) that are facing IPv4 address depletion at these peering points
   to use BGP-MP capability exchange defined in [RFC8950] to carry IPv4
   (Network Layer Reachability Information) NLRI in an IPv6 next hop
   using the [RFC5565] softwire mesh framework.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

Mishra, et al.          Expires October 11, 2021                [Page 1]
Internet-Draft              IPv4 NLRI IPv6NH                  April 2021

   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 October 11, 2021.

Copyright Notice

   Copyright (c) 2021 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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  External BGP PE-CE Peering IPv4 and IPv6 NLRI over a single
       IPv6 Next Hop Peer Interoperability Testing . . . . . . . . .   5
   4.  RFC 8950 updates to RFC 5549  . . . . . . . . . . . . . . . .   6
   5.  Operational Improvements with Single IPv6 transport peer  . .   7
   6.  Operational Considerations  . . . . . . . . . . . . . . . . .   7
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   8
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     10.1.  Normative References . . . . . . . . . . . . . . . . . .   8
     10.2.  Informative References . . . . . . . . . . . . . . . . .   9
   Appendix A.  IPv4 NLRI IPv6 Next Hop Vendor Testing . . . . . . .  10
     A.1.  Router and Switch Vendors Support and Quality Assurance
Show full document text