[rbridge] I-D ACTION:draft-ietf-trill-rbridge-protocol-07.txt

[Eastlake III Donald-LDE008]

Hi, just some quick comments on this draft.

I believe the list of changes from -06 to -07 in the Appendix is
reasonably complete.

Section 5, the pseudo-code, has not been fully updated.

On Options, there was discussion on the mailing list which didn't seem,
to me, to produce a particularly clear consensus. The protocol draft has
the critical option summary bits but the separate non-WG options draft
which has been posted is written so that, with relatively minor effort,
part of it could replace Section 3.5 of the protocol draft without
critical option summary bits. This makes little difference for transit
Rbridges; they would just have to check that the top two bits of the
first byte of the options area are not zero as opposed to checking that
the top bit is not one. However, the separate non-WG draft would, under
some circumstances, require an egress Rbridge to scan the options
present.

Thanks,
Donald
 
-----Original Message-----
From: rbridge-bounces at postel.org [mailto:rbridge-bounces at postel.org] On
Behalf Of Internet-Drafts at ietf.org
Sent: Monday, February 25, 2008 7:30 PM
To: i-d-announce at ietf.org
Cc: rbridge at postel.org
Subject: [rbridge] I-D ACTION:draft-ietf-trill-rbridge-protocol-07.txt



A New Internet-Draft is available from the on-line Internet-Drafts 
directories.
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)	: R. Perlman
	Filename	: draft-ietf-trill-rbridge-protocol-07.txt
	Pages		: 84
	Date		: 2008-2-25
	
RBridges allow for optimal pair-wise forwarding with zero
   configuration, safe forwarding even during periods of temporary
   loops, and multipathing for 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 bridges as well as
   current 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 based on RBridge
   destinations (rather than end node destinations), which allows
   internal forwarding tables to be substantially smaller than in
   conventional bridge systems.

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.txt

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