Subject: Re: reserving

From: Rameshbabu Prabagaran <[email-masked]>
Date: Wed, 1 Aug 2001 15:09:50 -0500 (CDT)

Hi Fabris,

> A contsraint-based routing scheme automatically
> choose paths with minimum hop count, largest
> available bandwidth, etc.
> But if I want to find a path and setup tunnel for
> 10Mbs for example.  How does the path finder
> algorithm know that? 

Finding a path for 10Mbps is done by the CSPF algorithm
that takes both the link state and available bandwidth
information into consideration when computing the
optimal path. The information, 10 Mbps for example in
your case, can be fed to the algorithm in the form
of configuration on a box. So, based on requirements
(your inputs) and available bandwidth information, the
CSPF algorithm can compute the shortest path.

> Is it signaled by RSVP?

You can use either of the signaling protocols RSVP-TE
or CR-LDP. 

I hope that answers your question :)

Thanks,
Ramesh.