Technical Summary
Provider Backbone Bridging (PBB) can be combined with Ethernet
Virtual Private Networks (EVPN) to deploy Ethernet Local Area Network
(ELAN) services in large Multi-Protocol Label Switching (MPLS)
networks (PBB-EVPN). Single-Active Multi-homing and per-I-SID (per
Service Instance Identifier) Load-Balancing can be provided to access
devices and aggregation networks. In order to speed up the network
convergence in case of failures on Single-Active Multi-Homed Ethernet
Segments, PBB-EVPN defines a flush mechanism for Customer MACs (CMAC-
flush) that works for different Ethernet Segment Backbone MAC (BMAC)
address allocation models. This document complements those CMAC-
flush procedures for cases in which no PBB-EVPN Ethernet Segments are
defined (the attachment circuit is associated to a zero Ethernet
Segment Identifier) and a Service Instance Identifier based (I-SID-
based) CMAC-flush granularity is required.
Working Group Summary
Was there anything in the WG process that is worth noting?
For example, was there controversy about particular points
or were there decisions where the consensus was
particularly rough?
The document seemed to have broad consensus, nothing beyond that.
Document Quality
Are there existing implementations of the protocol? Have a
significant number of vendors indicated their plan to
implement the specification? Are there any reviewers that
merit special mention as having done a thorough review,
e.g., one that resulted in important changes or a
conclusion that the document had no substantive issues? If
there was a MIB Doctor, Media Type, or other Expert Review,
what was its course (briefly)? In the case of a Media Type
Review, on what date was the request posted?
One known implementation exists, that was disclosed during the implementation poll
Personnel
The Document Shepherd for this document is Matthew Bocci. The
Responsible Area Director is Andrew Alston.