I-D ACTION:draft-kouvelas-pim-bidir-new-00.txt
Internet-Drafts@ietf.org Thu, 21 October 1999 12:01 UTC
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Subject: I-D ACTION:draft-kouvelas-pim-bidir-new-00.txt
Date: Thu, 21 Oct 1999 06:50:31 -0400
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A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : A New Proposal for Bi-directional PIM Author(s) : D. Estrin, M. Handley, I. Kouvelas, L. Vicisano Filename : draft-kouvelas-pim-bidir-new-00.txt Pages : 22 Date : 20-Oct-99 This document discusses a new form of Bi-directional PIM, a variant of PIM Sparse Mode [1] that builds bi-directional shared trees con- necting multicast sources and receivers. The ideas presented in this document are similar to those described in [2]. The main difference between the two proposals is in the method used to forward packets traveling upstream from a source to the RP. In particular [2] uses an IP option (UMP option) on data packets to assist with upstream forwarding. The UMP option identifies the next hop router responsible for forwarding the packet upstream. In contrast, this proposal does not alter data packets to embed con- trol information. Instead the identification of the next hop upstream forwarder is performed at RP discovery time using a fail-safe elec- tion mechanism. This significantly simplifies forwarding procedures and eliminates forwarding loops and packet duplication problems that exist in [2]. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-kouvelas-pim-bidir-new-00.txt 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-kouvelas-pim-bidir-new-00.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-kouvelas-pim-bidir-new-00.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.
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