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Pseudowire Redundancy on the Switching Provider Edge (S-PE) (RFC7795)

IP.com Disclosure Number: IPCOM000245304D
Original Publication Date: 2016-Feb-01
Included in the Prior Art Database: 2016-Feb-27
Document File: 18 page(s) / 21K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Dong: AUTHOR [+2]

Abstract

[RFC6718] describes the framework and requirements for pseudowire (PW) redundancy, and [RFC6870] specifies a PW redundancy mechanism for scenarios where a set of redundant PWs are configured between Provider Edge (PE) nodes in Single-Segment Pseudowire (SS-PW) [RFC3985] applications, or between Terminating Provider Edge (T-PE) nodes in Multi-Segment Pseudowire (MS-PW) [RFC5659] applications.

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Internet Engineering Task Force (IETF)                           J. Dong Request for Comments: 7795                                       H. Wang Category: Standards Track                            Huawei Technologies ISSN: 2070-1721                                            February 2016

       Pseudowire Redundancy on the Switching Provider Edge (S-PE)

Abstract

   This document describes Multi-Segment Pseudowire (MS-PW) protection    scenarios in which pseudowire redundancy is provided on the Switching    Provider Edge (S-PE) as defined in RFC 5659.  Operations of the S-PEs    that provide PW redundancy are specified in this document.  Signaling    of the Preferential Forwarding status as defined in RFCs 6870 and    6478 is reused.  This document does not require any change to the    Terminating Provider Edges (T-PEs) of MS-PW.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at    http://www.rfc-editor.org/info/rfc7795.

Copyright 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.

Dong & Wang                  Standards Track                    [Page 1]
 RFC 7795                  PW Redundancy on S-PE            February 2016

 Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2

   2.  Typical Scenarios of PW Redundancy on S-PE  . . . . . . . . .   3

     2.1.  MS-PW Redundancy on S-PE  . . . . . . . . . . . . . . . .   3

     2.2.  MS-PW Redundancy on S-PE with S-PE Protection . . . . . .   4

   3.  S-PE Operations . . . . . . . . . . . . . . . . . . . . . . .   4

   4.  Applications of PW...