Re: Concerning MPLS paths

[Saqib Ilyas <msaqib () gmail com>]

Furthermore, I was also wondering, if the bandwidth constraints are upper
bounds, what does the traffic distribution typically look like at an LSR?
We're interested in traffic within a single service provider, non-Internet
traffic. Perhaps most service providers set aside some (dynamic?) pool for
Internet traffic, while making commitments to customer's inter-site traffic.
Thanks and best regards

On Mon, Apr 27, 2009 at 5:50 PM, Saqib Ilyas <msaqib () gmail com> wrote:

> William
> Thanks for the reply. You say that LSPs are not static unless you use TE
> tunnels. Are you referring to the staticness in terms of the path or in the
> amount of bandwidth reserved on each link along a fixed path determined at
> the time of signalling? Isn't a bandwidth constrained LSP always a TE
> tunnel?
> Thanks and best regards
>
>
> On Mon, Apr 27, 2009 at 5:41 PM, William McCall <william.mccall () gmail com>wrote:
>
> > 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
>
>
> --
> Muhammad Saqib Ilyas
> PhD Student, Computer Science and Engineering
> Lahore University of Management Sciences



-- 
Muhammad Saqib Ilyas
PhD Student, Computer Science and Engineering
Lahore University of Management Sciences