Dynamic Placement of Multi Segment Pseudowires
draft-ietf-pwe3-dynamic-ms-pw-17

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Document Type Active Internet-Draft (pwe3 WG)
Last updated 2013-07-31 (latest revision 2013-06-19)
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Stream WG state Waiting for WG Chair Go-Ahead Aug 2012
Revised I-D Needed - Issue raised by WGLC
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Network Working Group                                 Luca Martini (Ed.)
Internet Draft                                        Cisco Systems Inc.
Expiration Date: December 2013
Intended status: Standards Track                     Matthew Bocci (Ed.)
                                                      Florin Balus (Ed.)
                                                          Alcatel-Lucent

                                                           June 19, 2013

             Dynamic Placement of Multi Segment Pseudowires

                  draft-ietf-pwe3-dynamic-ms-pw-17.txt

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   This Internet-Draft is submitted to IETF in full conformance with the
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Abstract

   There is a requirement for service providers to be able to extend the
   reach of pseudowires (PW) across multiple Packet Switched Network
   domains. A Multi-Segment PW is defined as a set of two or more
   contiguous PW segments that behave and function as a single point-
   to-point PW. This document describes extensions to the PW control
   protocol to dynamically place the segments of the multi segment
   pseudowire among a set of Provider Edge (PE) routers.

Martini, et al.                                                 [Page 1]
Internet Draft    draft-ietf-pwe3-dynamic-ms-pw-17.txt     June 19, 2013

Table of Contents

    1        Major Co-authors  .....................................   3
    2        Acknowledgements  .....................................   3
    3        Introduction  .........................................   3
    3.1      Scope  ................................................   3
    3.2      Specification of Requirements  ........................   3
    3.3      Terminology  ..........................................   4
    3.4      Architecture Overview  ................................   4
    4        Applicability  ........................................   6
    4.1      Changes to Existing PW Signaling  .....................   6
    5        PW Layer 2 Addressing  ................................   6
    5.1      Attachment Circuit Addressing  ........................   6
    5.2      S-PE Addressing  ......................................   7
    6        Dynamic Placement of MS-PWs  ..........................   7
    6.1      Pseudowire Routing Procedures  ........................   8
    6.1.1    AII PW Routing Table Lookup Aggregation Rules  ........   8
    6.1.2    PW Static Route  ......................................   9
    6.1.3    Dynamic Advertisement with BGP  .......................   9
    6.2      LDP Signaling  ........................................  10
    6.2.1    MS-PW Bandwidth Signaling  ............................  10
    6.2.2    Equal Cost Multi Path (ECMP) in PW Routing  ...........  12
    6.2.3    Active/Passive T-PE Election Procedure  ...............  12
    6.2.4    Detailed Signaling Procedures  ........................  13
    7        Failure Handling Procedures  ..........................  14
    7.1      PSN Failures  .........................................  14
    7.2      S-PE Specfic Failures  ................................  14
    7.3      PW Reachability Changes  ..............................  15
    8        Operations and Maintenance (OAM)  .....................  16
    9        Security Considerations  ..............................  16
   10        IANA Considerations  ..................................  16
   10.1      LDP TLV TYPE NAME SPACE  ..............................  17
   10.2      LDP Status Codes  .....................................  17
   10.3      BGP SAFI  .............................................  17
   11        Normative References  .................................  17
   12        Informative References  ...............................  18
   13        Author's Addresses  ...................................  18

Martini, et al.                                                 [Page 2]
Internet Draft    draft-ietf-pwe3-dynamic-ms-pw-17.txt     June 19, 2013
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