[rbridge] Working Group Last Call: draft-ietf-trill-rbridge-protocol-13.txt
d3e3e3 at gmail.com
Tue Jun 30 06:14:44 PDT 2009
The changes between the -12 and -13 versions of the base protocol
draft were sufficiently extensive that we have decided that another
Working Group Last Call is required. This message starts a two week
WGLC which ends July 15th.
Donald and Erik
Donald E. Eastlake 3rd +1-508-634-2066 (home)
155 Beaver Street
Milford, MA 01757 USA
d3e3e3 at gmail.com
On Mon, Jun 29, 2009 at 5:45 PM, <Internet-Drafts at ietf.org> wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts
> This draft is a work item of the Transparent Interconnection of Lots of Links Working Group of the IETF.
> Title : Rbridges: Base Protocol Specification
> Author(s) : D. Eastlake 3rd, D. Dutt, S. Gai, A. Ghanwani, R. Perlman
> Filename : draft-ietf-trill-rbridge-protocol-13.txt
> Pages : 102
> Date : 2009-6-29
> RBridges provide optimal pair-wise forwarding with zero
> configuration, safe forwarding even during periods of temporary
> loops, and support for multipathing of both unicast and multicast
> traffic. They achieve these goals using IS-IS routing and
> encapsulation of traffic with a header that includes a hop count.
> RBridges are compatible with previous IEEE 802.1 customer bridges as
> well as IPv4 and IPv6 routers and end nodes. They are as invisible to
> current IP routers as bridges are and, like routers, they terminate
> the bridge spanning tree protocol.
> The design supports VLANs and optimization of the distribution of
> multi-destination frames based on VLAN and IP derived multicast
> groups. It also allows forwarding tables to be sized according to
> the number of RBridges (rather than the number of end nodes), which
> allows internal forwarding tables to be substantially smaller than in
> conventional bridges.
> A URL for this Internet-Draft is:
> Internet-Drafts are also available by anonymous FTP at:
More information about the rbridge