Extensions to VPLS PE model for Provider Backbone Bridging
draft-ietf-l2vpn-pbb-vpls-pe-model-05

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Document Type Active Internet-Draft (l2vpn WG)
Authors Florin Balus  , Matthew Bocci  , Ali Sajassi  , Nabil Bitar  , Raymond Zhang 
Last updated 2012-08-29
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L2VPN Working Group                                    
Internet Draft                                        F. Balus (editor)          
Intended Status: Informational                                 M. Bocci
Expires: March 2013                                      Alcatel-Lucent 
                                                                         
John Hoffmans                                      Ali Sajassi (editor) 
KPN                                                               Cisco 
                                                                         
Geraldine Calvignac                                Nabil Bitar (editor) 
France Telecom                                                  Verizon 
                                                                         
Olen Stokes                                               Raymond Zhang 
Extreme Networks                                        British Telecom 
 
                                                        August 28, 2012 
 
                                      
        Extensions to VPLS PE model for Provider Backbone Bridging 
                 draft-ietf-l2vpn-pbb-vpls-pe-model-05.txt

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   Copyright (c) 2012 IETF Trust and the persons identified as the 
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Balus, et al.          Expires March 28, 2012                  [Page 1] 

Internet-Draft  Extensions to VPLS PE model for PBB    August 2012  
    
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Abstract 

   IEEE 802.1ah standard [IEEE802.1ah], also known as Provider Backbone 
   Bridges (PBB) defines an architecture and bridge protocols for 
   interconnection of multiple Provider Bridge Networks (PBNs). PBB was 
   defined in IEEE as a connectionless technology based on multipoint 
   VLAN tunnels. MSTP is used as the core control plane for loop 
   avoidance and load balancing. As a result, the coverage of the 
   solution is limited by STP scale in the core of large service 
   provider networks. PBB on the other hand can be used to attain better 
   scalability in terms of number of customer MAC addresses and number 
   of service instances that can be supported.  

   Virtual Private LAN Service (VPLS) [RFC4664] provides a framework for 
   extending Ethernet LAN services, using MPLS tunneling capabilities, 
   through a routed MPLS backbone without running (M)STP across the 
   backbone. As a result, VPLS has been deployed on a large scale in 
   service provider networks.  

   This draft discusses extensions to the VPLS PE model required to 
   incorporate desirable PBB components while maintaining the Service 
   Provider fit of the initial model.  

   Table of Contents 

   1. Introduction...................................................3 
   2. General terminology............................................4 
      2.1. Conventions used in this document.........................5 
   3. PE Reference Model.............................................5 
   4. Packet Walkthrough.............................................8 
   5. Control Plane.................................................10 
   6. Efficient Packet replication in PBB VPLS......................11 
   7. PBB VPLS OAM..................................................11 
   8. Security Considerations.......................................11 
   9. IANA Considerations...........................................11 
   10. References...................................................11 
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