The MPLS WG Archive

[Raymond Law <rlaw@vt.edu>]

I agree the problem that I posed may not be MPLS specific; it applies to 
ATM circuits as well.  I think this may be more of a TE problem than a MPLS 
problem.

Basically I heard two solutions from the list.  The first solution is to 
assign a new LSP with the adjusted (measured from the first initial LSP) 
bandwidth.  Is the overhead (destroy the old LSP and set up a new LSP and 
the delay to do so) involved in this solution worth what it provides 
(better LSP utilization)?

The second solution is to do load balancing when setting up LSPs.  I agree 
that load balancing can definitely lead to better utilization of the 
LSPs.  However, I am more interested in the situation where, after load 
balancing and setting up LSPs for the FECs, the amount of traffic sent 
through the LSPs change, resulting in over- and under-utilization of some LSPs.

Ray,