EVPN Path Attribute Propagation
draft-rs-bess-evpn-attr-prop-00

Document Type Active Internet-Draft (individual)
Last updated 2017-03-13
Replaces draft-rabadan-simpson-bess-evpn-attr-prop
Stream (None)
Intended RFC status (None)
Formats plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
On Agenda bess at IETF-98
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
BESS Workgroup                                           J. Rabadan, Ed.
Internet Draft                                           A. Simpson, Ed.
Intended status: Standards Track                                   Nokia

                                                               J. Uttaro
                                                                    AT&T

Expires: September 14, 2017                               March 13, 2017

                    EVPN Path Attribute Propagation
                    draft-rs-bess-evpn-attr-prop-00

Abstract

   EVPN is being actively used to provide tenant inter-subnet-forwarding
   in DC networks, as described in [IP-PREFIX] and [INTER-SUBNET]. When
   those tenant networks are interconnected to vpn-ipv4/vpn-ipv6 or
   ipv4/ipv6 BGP networks, there is a need for the EVPN BGP Path
   Attributes to be seamlessly propagated so that the receiver PE or NVE
   can consider the original EVPN Attributes in its path calculations.
   This document analyses the use-cases, requirements and rules based on
   which the BGP Path Attributes should be propagated between EVPN and
   other BGP families.  

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

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

Rabadan, Simpson et al.Expires September 14, 2017               [Page 1]
Internet-Draft      EVPN Path Attribute Propagation       March 13, 2017

   This Internet-Draft will expire on September 14, 2017.

Copyright Notice

   Copyright (c) 2017 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. Problem Statement . . . . . . . . . . . . . . . . . . . . . . .  2
   2. EVPN Path Attribute Propagation Use Cases . . . . . . . . . . .  3
     2.1 DCI using a Different Administrative Domain  . . . . . . . .  3
     2.2 DCI within the Same Administrative Domain  . . . . . . . . .  4
     2.3 DCI using a Public IP Network  . . . . . . . . . . . . . . .  5
   3. Solution Requirements . . . . . . . . . . . . . . . . . . . . .  6
   4. Solution Description  . . . . . . . . . . . . . . . . . . . . .  6
     4.1 EVPN Path Attribute No-Propagation-Mode  . . . . . . . . . .  6
     4.2 EVPN Path Attribute Propagation Tunnel-Mode  . . . . . . . .  7
     4.3 EVPN Path Attribute Propagation Uniform-Mode . . . . . . . .  8
     4.4 Path Selection across EVPN and IP-VPN  . . . . . . . . . . .  9
   5. Deployment Examples . . . . . . . . . . . . . . . . . . . . . .  9
   6. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . .  9
   6. Conventions used in this document . . . . . . . . . . . . . . . 10
   7. Security Considerations . . . . . . . . . . . . . . . . . . . . 10
   8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 10
   9. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . 10
   9. References  . . . . . . . . . . . . . . . . . . . . . . . . . . 11
     9.1 Normative References . . . . . . . . . . . . . . . . . . . . 11
     9.2 Informative References . . . . . . . . . . . . . . . . . . . 11
   10. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 11
   11. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 11
   17. Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 11

1. Problem Statement
 

Rabadan, Simpson et al.Expires September 14, 2017               [Page 2]
Internet-Draft      EVPN Path Attribute Propagation       March 13, 2017

   EVPN is being actively used to provide tenant inter-subnet-forwarding
Show full document text