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Re: Lambda LSP Forwarding Adjacency Doubt



Hi Yangguang,
              How the TDM mapping be established at nodes A and D ? There is 
no signalling for this. I am not aware of any draft that talks of such kind 
of mapping.

Can u please point me to appropriate text in the drafts ?


Regards,
manoj.


>From: Yangguang Xu <xuyg@lucent.com>
>To: manoj juneja <manojkumarjuneja@hotmail.com>
>CC: ccamp@ops.ietf.org
>Subject: Re: Lambda LSP Forwarding Adjacency Doubt
>Date: Tue, 04 Dec 2001 18:00:28 -0500
>
>
>
>manoj,
>
> > > >Hi All,
> > > >         If there are 4 nodes say A, B, C and D. There is a Lambda FA
> > > >established from A to D and if a new TDM LSP request comes to node A
> > > >which is to be tunneled through the already established lambda FA-LSP
> > > >then the node A sends the Path/label request message directly to node
> > > >D. What label the node D will send back to node A in the RESV/label
> > > >mapping message since the FA-LSP is just one label (lambda) ? Does it
> > > >mean that all the LSPs which are tunneled through the lambda FA-LSP
> > > >will be allocated the same label by node D to node A ?
> > > >
>
>In this case A and D are neighbors in the TDM network. So A and D need to 
>build
>up TDM label mapping table between them over the new interfaces connected
>through the Lambda FA-LSP. The TDM labels are at a different space from the
>Lambda labels. They are at different logical layers.
>
>Regards,
>
>Yangguang


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