A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : RBridges: Transparent Routing
Author(s) : R. Perlman, et al.
Filename : draft-perlman-rbridge-01.txt
Pages : 21
Date : 2004-7-20
This design provides the ability to have an entire campus, with
multiple physical links, look to IP like a single subnet. This
allows zero configuration of the switches within the campus, and
allows nodes to move around within the campus without changing IP
addresses. This capability is often provided today with bridges.
Bridges do accomplish this goal. However, bridges have
disadvantages: routing is confined to a spanning tree (precluding
pair-wise shortest paths), the header on which the spanning tree
forwards has no hop count, spanning tree forwarding in the presence
of temporary loops spawns exponential copies of packets, nodes can
have only a single point of attachment, and the spanning tree, in
order to avoid temporary loops, is slow to start forwarding on new
ports. The design in this paper avoids these disadvantages of
bridges while maintaining the advantages. This design works for both
IPv4 and IPv6.
This document is a work in progress; we invite you to participate on
the rbridge mailing list at http://www.postel.org/rbridge
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-perlman-rbridge-01.txt
To remove yourself from the I-D Announcement list, send a message to
i-d-announce-request@ietf.org with the word unsubscribe in the body of the message.
You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce
to change your subscription settings.
Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
"get draft-perlman-rbridge-01.txt".
A list of Internet-Drafts directories can be found in
http://www.ietf.org/shadow.html
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
Internet-Drafts can also be obtained by e-mail.
Send a message to:
mailserv@ietf.org.
In the body type:
"FILE /internet-drafts/draft-perlman-rbridge-01.txt".
NOTE: The mail server at ietf.org can return the document in
MIME-encoded form by using the "mpack" utility. To use this
feature, insert the command "ENCODING mime" before the "FILE"
command. To decode the response(s), you will need "munpack" or
a MIME-compliant mail reader. Different MIME-compliant mail readers
exhibit different behavior, especially when dealing with
"multipart" MIME messages (i.e. documents which have been split
up into multiple messages), so check your local documentation on
how to manipulate these messages.
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.
- <ftp://ftp.ietf.org/internet-drafts/draft-perlman-rbridge-01.txt>
-
_______________________________________________
I-D-Announce@ietf.org
https://www1.ietf.org/mailman/listinfo/i-d-announce
