The MPLS WG Archive

[Dave Cooper <dcooper@globalcenter.net>]

We've been running MPLS in the core for TE purposes
for quite some time now. However, one of the largest hurdles we
have faced is not just the stability of the protocol
but the actual management of protocol. More specifically,
the TE bandwidth statements used to make "optimal" path 
decisions. (Keeping TE bandwidth consistent with 
actual peak flows).

In a large backbone, flows can fluctuate by large
variations (usually due to egress traffic shifts,
down customers, or other external factors) and its
obvious that TE bandwidth can become "outdated" fairly
quickly.

I was inquiring to see if other providers or vendors
have been working on developing software to help 
manage this critical component of MPLS.  The old adage
is correct in "Garbage in, Garbage out" and if TE
bandwidth is not accurate, LSPs will never be
routed over optimal paths.  We have been doing some 
in-house development, but we're always interested in 
outside input or even code that can be co-developed.

-dave