Signaling Root-Initiated Point-to-Multipoint Pseudowire using LDP
draft-ietf-pwe3-p2mp-pw-03

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Document Type Active Internet-Draft (pwe3 WG)
Last updated 2011-10-28 (latest revision 2011-03-02)
Replaces draft-martini-pwe3-p2mp-pw
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Network Working Group                               Siva Sivabalan (Ed.) 
Internet Draft                                        Sami Boutros (Ed.) 
Intended status: Standards Track                            Luca Martini 
Expires: April 15, 2012                                    Cisco Systems 
                                                      
Frederic Jounay                                  Maciek Konstantynowicz 
Philippe Niger                                                   Juniper 
France Telecom                                                                     
                                                                        
Thomas D. Nadeau                                      Gianni Del Vecchio 
CA Technologies                                                 Swisscom 
                                                                          
Simon Delord                                                 Yuji Kamite 
Telstra                                               NTT Communications 
                                                                          
Laurent Ciavaglia                                            Lizhong Jin 
Martin Vigoureux                                                     ZTE 
Alcatel-Lucent                                                          
                                                        October 27, 2011 

   Signaling Root-Initiated Point-to-Multipoint Pseudowire using LDP  
                     draft-ietf-pwe3-p2mp-pw-03.txt 

Status of this Memo 

   This Internet-Draft is submitted to IETF in full conformance with the 
   provisions of BCP 78 and BCP 79. 

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   This Internet-Draft will expire on April 27, 2012. 

 

 
 

Boutros                 Expires April 15, 2012                 [Page 1] 
 

Internet-Draft      draft-ietf-pwe3-p2mp-pw-03.txt          October 2011 
 

Abstract 

   This document specifies a mechanism to signal Point-to-Multipoint 
   (P2MP) Pseudowires (PW) tree using LDP. Such a mechanism is suitable 
   for any Layer 2 VPN service requiring P2MP connectivity over an IP or 
   MPLS enabled PSN. A P2MP PW established via the proposed mechanism is 
   root initiated. 

    
Table of Contents 

    
   1. Introduction...................................................2 
   2. Terminology....................................................4 
   3. Signaling P2MP PW..............................................5 
      3.1. PW ingress to egress incompatibility issues...............6 
      3.2. P2MP PW FEC...............................................7 
      3.3. Group ID usage...........................................11 
      3.4. Generic Label TLV........................................11 
      3.5. Transport LSP TLV........................................12 
   4. LDP Capability Negotiation....................................13 
   5. P2MP PW Status................................................15 
   6. Security Considerations.......................................15 
   7. IANA Considerations...........................................15 
      7.1. FEC Type Name Space......................................15 
      7.2. LDP TLV Type.............................................16 
      7.3. mLDP Opaque Value Element TLV Type.......................16 
      7.4. Selective Tree Interface Parameter sub-TLV Type..........16 
   8. Acknowledgment................................................17 
   9. References....................................................17 
      9.1. Normative References.....................................17 
      9.2. Informative References...................................18 
   Full Copyright Statement.........................................21 
   Intellectual Property Statement..................................21 
    

 
1. Introduction 

      A Point-to-Multipoint (P2MP) Pseudowire (PW) emulates the 
   essential attributes of a unidirectional P2MP Telecommunications 
   service such as P2MP ATM over PSN. A major difference between a 
   Point-to-Point (P2P) PW outlined in [RFC3985] and a P2MP PW is that 
   the former is intended for bidirectional service whereas the latter 
   is intended for both unidirectional and bidirectional services. 
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