IP Prefix Advertisement in E-VPN
draft-rabadan-l2vpn-evpn-prefix-advertisement-00

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Authors Jorge Rabadan  , Jorge Rabadan  , Wim Henderickx  , Senad Palislamovic  , Senad Palislamovic  , Florin Balus  , Florin Balus  , Aldrin Isaac 
Last updated 2013-07-15
Replaced by draft-ietf-bess-evpn-prefix-advertisement
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L2VPN Workgroup                                               J. Rabadan
Internet Draft                                             W. Henderickx
                                                         S. Palislamovic
Intended status: Standards Track                          Alcatel-Lucent

                                                                F. Balus
                                                          Nuage Networks

                                                                A. Isaac
                                                               Bloomberg

Expires: January 16, 2014                                  July 15, 2013

                    IP Prefix Advertisement in E-VPN
            draft-rabadan-l2vpn-evpn-prefix-advertisement-00

Abstract

   E-VPN provides a flexible control plane that allows intra-subnet
   connectivity in an IP/MPLS and/or an NVO-based network. In Data
   Centers, 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 E-VPN route type for the advertisement of
   IP Prefixes and explains how E-VPN should be used to provide
   inter-subnet connectivity with the flexibility required by the Data
   Center applications.

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
 

Rabadan et al.          Expires January 16, 2014                [Page 1]
Internet-Draft         E-VPN Prefix Advertisement          July 15, 2013

   http://www.ietf.org/ietf/1id-abstracts.txt

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

   This Internet-Draft will expire on January 16, 2014.

Copyright Notice

   Copyright (c) 2013 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. Introduction and problem statement  . . . . . . . . . . . . . .  3
     1.1 Inter-subnet connectivity requirements in Data Centers . . .  3
     1.2 The requirement for advertising IP prefixes in E-VPN . . . .  5
     1.3 The requirement for a new E-VPN route type . . . . . . . . .  6
   2. The BGP E-VPN IP Prefix route . . . . . . . . . . . . . . . . .  8
     2.1. IP Prefix Route encoding  . . . . . . . . . . . . . . . . .  9
     2.2. BGP remote-next-hop attribute . . . . . . . . . . . . . . .  9
   3. Procedures associated to the advertisement of IP Prefixes . . . 10
     3.1. Usage of the MAC advertisement and IP Prefix 
          advertisement routes  . . . . . . . . . . . . . . . . . . . 10
     3.2. Inter-subnet connectivity for TS  . . . . . . . . . . . . . 11
     3.3. Inter-subnet connectivity for redundant TS (floating IP)  . 13
     3.4. Inter-subnet connectivity for IRB interfaces  . . . . . . . 15
       3.4.1. Inter-subnet connectivity for unnumbered IRB 
              interfaces  . . . . . . . . . . . . . . . . . . . . . . 17
   4. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 19
   5. Conventions used in this document . . . . . . . . . . . . . . . 20
   6. Security Considerations . . . . . . . . . . . . . . . . . . . . 20
   7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 20
   8. References  . . . . . . . . . . . . . . . . . . . . . . . . . . 20
     8.1. Normative References  . . . . . . . . . . . . . . . . . . . 20
     8.2. Informative References  . . . . . . . . . . . . . . . . . . 20
   9. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . 20
   10. Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 21
 

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