A New Internet-Draft is available from the on-line Internet-Drafts
directories.
This draft is a work item of the IS-IS for IP Internets Working Group of the IETF.
Title : IS-IS Extensions Supporting IEEE 802.1aq Shortest Path Bridging
Author(s) : D. Fedyk, P. Ashwood-Smith, D. Allan, N. Bragg, P. Unbehagen
Filename : draft-ietf-isis-ieee-aq-02.txt
Pages : 34
Date : 2010-11-30
802.1aq Shortest Path Bridging (SPB) is being standardized by the
IEEE as the next step in the evolution of the various spanning tree
and registration protocols. 802.1aq allows for true shortest path
forwarding in a mesh network context utilizing multiple equal cost
paths. This permits it to support much larger layer 2 topologies,
with faster convergence, and vastly improved use of the mesh
topology. Combined with this is single point provisioning for
logical connectivity membership (E-LINE/E-LAN/E-TREE etc).
The control protocol for 802.1aq is IS-IS [IS-IS] augmented with a
small number of TLVs while the encapsulating data paths are
respectively 802.1ad (Provider Bridges) [PB] and 802.1ah (Provider
Backbone Bridges) [PBB]. This memo documents those TLVs while
providing some overview.
Note that 802.1aq requires no state machine or other substantive
changes to [IS-IS]. It is our intention that 802.1aq be simply a new
NLPID and set of TLVs. In the event of any confusion the reader
should take [IS-IS] as authoritative.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-isis-ieee-aq-02.txt
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