The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: beginner's query
On Thu, 20 May 2004 10:15:29 +0530 (IST), Sundeep Singh <singh0de@ee.iitb.ac.in> wrote: > Hi, > I fail to understand the format of the "Path message" as specified in RFC > 3209. what does the different types of brackets signify? That stuff is written in Backus-Naur Form (BNF): http://cui.unige.ch/db-research/Enseignement/analyseinfo/AboutBNF.html > And say i wish to reserve 10kbps of bandwidth for a particular FEC, how > is > this conveyed using a Path message? This is signalled in the SENDER_TSPEC. On a cisco box: *Dec 23 17:57:17.029: SENDER_TSPEC type 2 length 36: *Dec 23 17:57:17.029: version=0, length in words=7 *Dec 23 17:57:17.029: Token bucket fragment (service_id=1, length=6 words *Dec 23 17:57:17.029: parameter id=127, flags=0, parameter length=5 *Dec 23 17:57:17.029: average rate=1250 bytes/sec, burst depth=1000 bytes *Dec 23 17:57:17.029: peak rate =1250 bytes/sec *Dec 23 17:57:17.029: min unit=0 bytes, max pkt size=4294967295 bytes average rate==peak rate==1250 Bytes/sec==10,000 bits/sec==10Kbps Exactly where to put the BW isn't well specified, so it was a source of confusion during the early days of TE, but seems to have all settled down now. > Also is there some good reference other than the RFC, where i can look > for > a better understanding of RSVP-TE. I can wholeheartedly recommend "Traffic Engineering with MPLS" by Osborne & Simha, but I'm perhaps a little biased in that area. :) eric > Thanks, > Sundeep. ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml
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