IP Prefix Advertisement in EVPN
draft-ietf-bess-evpn-prefix-advertisement-00

The information below is for an old version of the document
Document Type Active Internet-Draft (bess WG)
Last updated 2015-01-28
Replaces draft-rabadan-l2vpn-evpn-prefix-advertisement
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state WG Document
Document shepherd Martin Vigoureux
IESG IESG state I-D Exists
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Send notices to "Martin Vigoureux" <martin.vigoureux@alcatel-lucent.com>
L2VPN Workgroup                                               J. Rabadan
Internet Draft                                             W. Henderickx
                                                         S. Palislamovic
Intended status: Standards Track                          Alcatel-Lucent

J. Drake                                                        F. Balus
Juniper                                                   Nuage Networks

A. Sajassi                                                      A. Isaac
Cisco                                                          Bloomberg

Expires: August 1, 2015                                 January 28, 2015

                    IP Prefix Advertisement in EVPN
              draft-ietf-bess-evpn-prefix-advertisement-00

Abstract

   EVPN provides a flexible control plane that allows intra-subnet
   connectivity in an IP/MPLS and/or an NVO-based network. In NVO
   networks, there is also a need for a dynamic and efficient inter-
   subnet connectivity across Tenant Systems and End Devices that can be
   physical or virtual and may not support their own routing protocols.
   This document defines a new EVPN route type for the advertisement of
   IP Prefixes and explains some use-case examples where this new route-
   type is used.

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), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   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."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt
 

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   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html

   This Internet-Draft will expire on August 1, 2015.

Copyright Notice

   Copyright (c) 2015 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
   (http://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. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2. Introduction and problem statement  . . . . . . . . . . . . . .  3
     2.1 Inter-subnet connectivity requirements in Data Centers . . .  4
     2.2 The requirement for a new EVPN route type  . . . . . . . . .  6
   3. The BGP EVPN IP Prefix route  . . . . . . . . . . . . . . . . .  7
     3.1 IP Prefix Route encoding . . . . . . . . . . . . . . . . . .  8
   4. Benefits of using the EVPN IP Prefix route  . . . . . . . . . . 10
   5. IP Prefix next-hop use-cases  . . . . . . . . . . . . . . . . . 11
     5.1 TS IP address next-hop use-case  . . . . . . . . . . . . . . 11
     5.2 Floating IP next-hop use-case  . . . . . . . . . . . . . . . 14
     5.3 ESI next-hop ("Bump in the wire") use-case . . . . . . . . . 16
     5.4 IRB forwarding on NVEs for Subnets (IP-VRF-to-IP-VRF)  . . . 18
   6. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 21
   7. Conventions used in this document . . . . . . . . . . . . . . . 21
   8. Security Considerations . . . . . . . . . . . . . . . . . . . . 22
   9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 22
   10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 22
     10.1 Normative References  . . . . . . . . . . . . . . . . . . . 22
     10.2 Informative References  . . . . . . . . . . . . . . . . . . 22
   11. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 22
   12. Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 22

 

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1. Terminology

   GW IP: Gateway IP Address

   IPL: IP address length

   IRB: Integrated Routing and Bridging interface

   ML: MAC address length
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