nanog mailing list archives

Re: Concerning MPLS paths


From: William McCall <william.mccall () gmail com>
Date: Mon, 27 Apr 2009 07:41:23 -0500

Well, yes (if you don't count the additional traffic of signalling/routing
protocols, label imposition, etc) but consider the fact that topologies
change and routing will tend to change the total traffic handled through a
node. LSPs are not static unless you use TE tunnels. Remember that labels
are Forwarding Equivalency Classes and that translates into subnets (whether
they're subnets in a L3 vpn or part of the P network) and the routing is
still handled through an IGP or BGP.

HTH

--WJM IV

On Mon, Apr 27, 2009 at 7:10 AM, Saqib Ilyas <msaqib () gmail com> wrote:

Hello everyone
In the context of a single service provider network running MPLS, if a
number of bandwidth constrained LSPs are passing through a particular node
and the sum of the bandwidth constraints for the LSPs is X Mb/s, then is X
the upper bound on the traffic through that node, or is it sometimes
exceeded as well?
Thanks and best regards



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