The MPLS WG Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Updated draft for crankback routing extensions
Dear MPLS folks, I'm Atsushi Iwata in NEC Corporation. I've submitted the following I-D in MPLS WG. In this version, RSVP-TE crankback routing extension is also included, and several new specifications are included. In this draft, (1) CR-LDP sections were already accepted as a WG draft, except a small additional change. (2) RSVP-TE sections were newly added, and need discussions. If (2) will be agreed as a WG draft, then the whole draft will be renamed as draft-mpls-crankback-00.txt and resubmitted to the IETF after this IETF. If (2) will not be agreed as a WG draft, then only part (1) will be extracted and will be renamed as draft-mpls-crankback-00.txt and resubmitted to the IETF after the IETF. Maybe RSVP-TE portions will be discussed in the draft-iwata-mpls-crankback-01.txt or so. Best Regards, ----- To: IETF-Announce:; From: Internet-Drafts@ietf.org Reply-to: Internet-Drafts@ietf.org Subject: I-D ACTION:draft-iwata-mpls-crankback-00.txt Date: Tue, 28 Nov 2000 05:57:54 -0500 Sender: nsyracus@cnri.reston.va.us X-UIDL: ba6fd0aca8ed825c8269b45400bb6f81 A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Crankback Routing Extensions for MPLS Signaling Author(s) : A. Iwata, N. Fujita, G. Ash, A. Farrel Filename : draft-iwata-mpls-crankback-00.txt Pages : 30 Date : 27-Nov-00 This draft proposes crankback routing extensions for CR-LDP signaling and for RSVP-TE signaling. Recently, several routing protocol extensions for advertising resource information in addition to topology information have been proposed for use in distributed constraint-based routing. In such a distributed routing environment, however, the information used to compute a constraint-based path may be out of date. This means that LSP setup requests may be blocked by links or nodes without sufficient resources. This draft specifies crankback routing extensions for CR-LDP and RSVP-TE so that the label request can be retried on an alternate path that detours around the blocked link or node upon a setup failure. Furthermore, the crankback routing schemes can also be applied to LSP restoration by indicating the location of the failure link or node. This would significantly improve the successful recovery ratio for failed LSPs, especially in situations where a large number of setup requests are triggered at the same time. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-iwata-mpls-crankback-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-iwata-mpls-crankback-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-iwata-mpls-crankback-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. Content-Type: text/plain Content-ID: <20001127132638.I-D@ietf.org> ENCODING mime FILE /internet-drafts/draft-iwata-mpls-crankback-00.txt <ftp://ftp.ietf.org/internet-drafts/draft-iwata-mpls-crankback-00.txt> ---------------------------------------------------------------- Atsushi Iwata Assistant Manager Network Architecture TG, Computer and Communication Media Research Labs, NEC Corporation 4-1-1 Miyazaki Miyamae-ku, Kawasaki, Japan 216-8555 TEL: +81-44-856-2123 (Direct), Fax: +81-44-856-2230 (Direct) NEC-internal TEL: 8-272-3281, NEC-internal FAX: 8-272-3299 Internet E-mail: a-iwata@ah.jp.nec.com NEC-internal E-mail: iwata@ccm.CL.nec.co.jp ** New organization has started since Apr.1, 2000. *** |
|