A new Request for Comments is now available in online RFC libraries.
RFC 6325
Title: Routing Bridges (RBridges): Base Protocol
Specification
Author: R. Perlman, D. Eastlake 3rd,
D. Dutt, S. Gai,
A. Ghanwani
Status: Standards Track
Stream: IETF
Date: July 2011
Mailbox: Radia@alum.mit.edu,
d3e3e3@gmail.com,
ddutt@cisco.com, silvano@ip6.com,
anoop@alumni.duke.edu
Pages: 99
Characters: 243158
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-trill-rbridge-protocol-16.txt
URL: http://www.rfc-editor.org/rfc/rfc6325.txt
Routing Bridges (RBridges) provide optimal pair-wise forwarding without
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 the optimization of the distribution of
multi-destination frames based on VLAN ID and based on IP-derived multicast
groups. It also allows unicast forwarding tables at transit RBridges
to be sized according to the number of RBridges (rather than the
number of end nodes), which allows their forwarding tables to be
substantially smaller than in conventional customer bridges.
[STANDARDS-TRACK]
This document is a product of the Transparent Interconnection of Lots of Links Working Group of the IETF.
This is now a Proposed Standard Protocol.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements. Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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