A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Layer 2 Virtual Private Networks Working Group of the IETF.
Title : Extensions to VPLS PE model for Provider Backbone Bridging
Author(s) : Florin Balus
Matthew Bocci
Mustapha Aissaoui
Ali Sajassi
Nabil Bitar
Raymond Zhang
Filename : draft-ietf-l2vpn-pbb-vpls-pe-model-04.txt
Pages : 14
Date : 2011-10-04
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.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-l2vpn-pbb-vpls-pe-model-04.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-ietf-l2vpn-pbb-vpls-pe-model-04.txt
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