Technical Summary
This document discusses how Ethernet Provider Backbone Bridging (PBB)
can be combined with Ethernet VPN (EVPN) in order to reduce the
number of BGP MAC advertisement routes by aggregating Customer/Client
MAC (C-MAC) addresses via Provider Backbone MAC address (B-MAC),
provide client MAC address mobility using C-MAC aggregation, confine
the scope of C-MAC learning to only active flows, offer per site
policies and avoid C-MAC address flushing on topology changes. The
combined solution is referred to as PBB-EVPN.
Working Group Summary
This document was an L2VPN Working Group document, and w reviewed
in the working group through multiple iterations of the draft.
The document passed WG last call in the L2VPN WG but is being advanced
as AD Sponsored because that WG has closed.
Document Quality:
The document is of roughly average length (22 pages).
It is well structured, but needs to be read in the context of the base EVPN
RFC (draft-ietf-l2vpn-evpn-11- should be an RFC soon), and requires
knowledge of Ethernet bridging (including PBB).
The document has been through multiple revisions and is now sufficiently
stable to progress to RFC, and more importantly to be used as a reference
for creating interoperable implementations (in fact PBB EVPN has already
been implemented by multiple vendors with more implementations in
progress).
Personnel:
Document Shepherd: Giles Heron (giheron@cisco.com)
Area Director: Alvaro Retana