The MPLS WG Archive

[Kireeti Kompella <kireeti@juniper.net>]

Hi,

> I read the "LSP hierarchy with MPLS TE" draft and i have some questions.
> 
> 1)Does the FA concept applies ONLY to the peer model? 

No.

> 2)In the case that FA establishment is triggered by
> mechanisms within MPLS (Section 7.2) who is the one that decides the
> actual optical path : is it the edge router or the router that initiates
> the Path/Request message?

Either.  In the former case, the initiator installs a loose hop to cross
the optical domain.

> 3)If the answer is the router that initiates the Path/Request message is
> it reasonable to assume that this router views the optical network as an
> abstract node, considering that we are talking about the peer model?

If the initiator computes the actual optical path, it has to see the
innards of the optical network -- i.e., it sees the optical network as
more than an abstract node.

Kireeti.