The MPLS WG Archive

[Curtis Villamizar <curtis@workhorse.fictitious.org>]

In message <39CBA478.E9E457A9@tellium.com>, Bala Rajagopalan writes:
> Curtis:
> 
> Curtis Villamizar wrote:
> 
> > In message <39CB7F67.BEC764D4@tellium.com>, Bala Rajagopalan writes:
> > >
> > >
> > > I think we should consider the entire solution in both cases,
> > > rather than just the bundling structure. From Yakov's mail, it
> > > seems like the solution you propose requires:
> > >
> > > 1. draft-kompella-mpls-bundling-02.txt  for bundling description
> > > 2. draft-zinin-flood-opt-00.txt for ospf flooding optimization when
> > > there are multiple bundles between the same pair of nodes.
> > > 3. draft-kompella-mpls-unnum-01.txt for specifying component
> > > links in ERO
> 
> >
> > IMHO 2 is not required therefore your more complex bundling scheme
> > adds litte or no value.
> 
> This is what Yakov said:
> 
> > (yakov) Advertising the same LSA over each control channel would be
> > fairly unwise thing to do (to say the least). Please look
> > at draft-zinin-flood-opt-00.txt on how to avoid doing this.


Bala,

I keep forgetting that our system allows multiple OC48 or OC192
interfaces to be concatonated together and treated as a single
interface (Composite Link TM in Avici marketing-speak) and others
don't do this.  Therefore we do not have this a problem wrt multiple
IGP adjacencies over the components of a bundle.  We just do SONET and
PPP over the components and provide the appearance of a single
interface to higher layers.

I think others are doing something similar (Pluris, maybe others).

Curtis