Re: [TE-wg] TE use in today's networks

[Ben Black <ben@layer8.net>]

On Mon, May 28, 2001 at 01:49:01PM -0400, Jennifer Rexford wrote:
> 
> > Additionally, there are subsequent ops problems with implementing it
> > (ie, dramatic impact when one link drops).
> 
> Depending on which link fails, the network load after the failure
> isn't all that bad.  Although some failures can cause problems, often
> one or two weight changes after the failure is enough to bring the
> network back to a happy place (analogous to the need to fail over to
> backup paths in MPLS).
> 

The difference in the MPLS case is that the backup paths can be
configured in advance.  With TE using link metrics, you may be forced
into changing the configuration when you least want to: during a
failure situation.


Ben