VPWS support in EVPN
draft-ietf-bess-evpn-vpws-03
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2016-05-10
(latest revision 2016-03-16)
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draft-boutros-l2vpn-evpn-vpws
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IETF
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Proposed Standard
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Zhaohui Zhang
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"Zhaohui (Jeffrey) Zhang" <zzhang@juniper.net>
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INTERNET-DRAFT Sami Boutros
Intended Status: Standard Track VMware
Ali Sajassi
Samer Salam
Cisco Systems
John Drake
Juniper Networks
Jeff Tantsura
Ericsson
Dirk Steinberg
Steinberg Consulting
Thomas Beckhaus
Deutsche Telecom
J. Rabadan
Alcatel-Lucent
Expires: September 17, 2016 March 16, 2016
VPWS support in EVPN
draft-ietf-bess-evpn-vpws-03.txt
Abstract
This document describes how EVPN can be used to support virtual
private wire service (VPWS) in MPLS/IP networks. EVPN enables the
following characteristics for VPWS: single-active as well as all-
active multi-homing with flow-based load-balancing, eliminates the
need for single-segment and multi-segment PW signaling, and provides
fast protection using data-plane prefix independent convergence upon
node or link failure.
Status of this Memo
This Internet-Draft is submitted to IETF 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
Boutros Expires September 17, 2016 [Page 1]
INTERNET DRAFT VPWS support in EVPN March 16, 2016
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/1id-abstracts.html
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html
Copyright and License Notice
Copyright (c) 2016 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 . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Terminology . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Requirements . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Service interface . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 VLAN-Based Service Interface . . . . . . . . . . . . . . . . 6
2.2 VLAN Bundle Service Interface . . . . . . . . . . . . . . . 7
2.2.1 Port-Based Service Interface . . . . . . . . . . . . . . 7
2.3 VLAN-Aware Bundle Service Interface . . . . . . . . . . . . 7
2.4 Flexible CrossConnect Service . . . . . . . . . . . . . . . 7
3. BGP Extensions . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 EVPN Layer 2 attributes extended community . . . . . . . . . 9
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 EVPN Comparison to PW Signaling . . . . . . . . . . . . . . . . 12
6 ESI Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Failure Scenarios . . . . . . . . . . . . . . . . . . . . . . . 12
Boutros Expires September 17, 2016 [Page 2]
INTERNET DRAFT VPWS support in EVPN March 16, 2016
7.1 Single-Homed CEs . . . . . . . . . . . . . . . . . . . . . . 13
7.2 Multi-Homed CEs . . . . . . . . . . . . . . . . . . . . . . 13
8 VPWS with multiple sites . . . . . . . . . . . . . . . . . . . . 13
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