Re: Route Exclusion

[Jean Philippe Vasseur <jvasseur@cisco.com>]

At 10:38 AM 6/11/2003 -0400, Adrian Farrel wrote:
> > >Route exclusions are useful when full path computation is not performed at
> the
> > >head of an LSP. This happens when
> > >- an external route server is used (see
> > >draft-vasseur-mpls-path-computation-rsvp-te)
> >
> > note that the PCS is always external ;-) Anyway, this gives me the
> > opportunity to mention something that I told you off-line: the draft
> > mentioned above does specify an EXCLUDE-ELEMENT object which has the same
> > objective as your draft. I'll remove it from the next revision and I agree
> > to support your draft.
>
> JP, thanks for your support.
>
> BTW, the PCS is *not* always external unless you use the definition that 
> says it
> is only a PCS if it is external :-)
>
> Consider
> i. LERs that offer path computation for LSPs that they initiate
> ii. PCS function that is offered on a box that is also an LER
well my only point was that PCS is just a function/capability regardless of 
whether the platform is a LSR, LER, Off-line UNIX box, ...

JP.

> Cheers,
> Adrian