I-D ACTION:draft-lee-ccamp-rsvp-te-exclude-route-02.txt
Internet-Drafts@ietf.org Fri, 07 March 2003 12:41 UTC
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Subject: I-D ACTION:draft-lee-ccamp-rsvp-te-exclude-route-02.txt
Date: Fri, 07 Mar 2003 06:50:41 -0500
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A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Exclude Routes - Extension to RSVP-TE Author(s) : C. Lee, A. Farrel, S. De Cnodder Filename : draft-lee-ccamp-rsvp-te-exclude-route-02.txt Pages : 11 Date : 2003-3-6 The current RSVP-TE specification, 'RSVP-TE: Extensions to RSVP for LSP Tunnels' (RFC 3209) and GMPLS extensions to RSVP-TE, 'Generalized Multi-Protocol Label Switching (GMPLS) Signaling Resource ReserVation Protocol-Traffic Engineering (RSVP-TE) Extensions' (RFC 3473) allow abstract nodes and resources to be explicitly included in a path setup, but not to be explicitly excluded. In some systems where precise explicit paths are not computed at the head end it may be useful to specify and signal abstract nodes and resources that are to be explicitly excluded from routes. These exclusions may apply to the whole of a path, or to parts of a path between two abstract nodes specified in an explicit route. Shared Risk Link Groups (SRLGs) allow the definition of resources or groups of resources that share the same risk of failure. The knowledge of SRLGs may be used to compute diverse paths that can be used for protection. In systems where it is useful to signal exclusions, it may be useful to signal SRLGs to indicate groups of resources that should be excluded on the whole of a path or between two abstract nodes specified in an explicit path. This document specifies ways to communicate route exclusions during path setup using RSVP-TE. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-lee-ccamp-rsvp-te-exclude-route-02.txt To remove yourself from the IETF Announcement list, send a message to ietf-announce-request with the word unsubscribe in the body of the message. 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-lee-ccamp-rsvp-te-exclude-route-02.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-lee-ccamp-rsvp-te-exclude-route-02.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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