The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Fwd: MPLS with 3 LERS only
Ganesh, when you say "no need for FECs, Label bindings, etc" you are really saying no need for MPLS. And indeed, in an IP network there is no need for MPLS, just a number of benefits. Since MPLS has to do with labels (I can hear the advertisement: " 'Label' is our middle name!"), you are going to get labels bound to routes/destinations, and you will have FECs in order to keep the number of distributed labels and the cached lists of those labels to a minimum. You get all the other differences that come with MPLS and the underlying protocol functions that allow them to happen. It is a different process than IP (though MPLS relies on IP to work), with benefits to it. All these other "etcs" follow from the implementation of MPLS. As to minimums, you can run 2 PE routers back to back with a crossover cable between them and have a fully functioning MPLS backbone. Obviously you don't get refinements such as the BGP route reflectors mentioned recently in the forum, but you get a complete MPLS system with labels being swapped and all the other "etcs" you imply (Granted, all those labels will be null labels, so you won't see fully developed label lists). To those PEs you can attach as many CEs as physically possible. It is just this sort of lab we run in the training classes for MPLS - simple, but complete and effective in showing off the processes involved. I hope this gets to your question, but if I have missed the mark, ask again. Roger Williams Resent-Date: Thu, 17 Oct 2002 01:27:34 -0400------- 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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