RE: Suggested Label Doubt

["manoj juneja" <manojkumarjuneja@hotmail.com>]

Vishal,

             As u mentioned, that label set may get restricted in
transit, but can the label set be completely dropped out at some
transit node ? I mean to say if u reach at a node (transit node) which
is capable of wavelength conversion (say any LAMBDA m to LAMBDA n i.e.
any to any capability), Can this node drop the label set ?

Regards,
manoj.




>From: Vishal Sharma <vsharma87@yahoo.com>
>Reply-To: "v.sharma@ieee.org" <v.sharma@ieee.org>
>To: "'manoj juneja'" <manojkumarjuneja@hotmail.com>,        
>"ccamp@ops.ietf.org"  <ccamp@ops.ietf.org>
>Subject: RE: Suggested Label Doubt
>Date: Fri, 22 Jun 2001 17:35:23 -0700
>
>Manoj,
>
>You think correctly. A label, by definition, has local significance 
>(between
>adjacent
>MPLS nodes).
>
>That the suggested label and  label set may have significance beyond a 
>single
>MPLS hop is simply because the nodes choose to assert the same value for
>subsequent hops as well.
>And yes, technically both the suggested label and the label set may change
>at each hop.
>(For example, consider an optical network with no wavelength conversion
>capability.
>  A label set that represents the wavelengths that can be allocated [say,
>lambda1 through lamba6] may, for example,
>become more restricted as the request advances, since subsequent nodes may 
>not
>have all of these
>wavelengths available [only lambda2 and lambda4 may be available beyond 
>some
>node for instance]).
>
>-Vishal
>
>On Friday, June 22, 2001 5:13 PM, manoj juneja
>[SMTP:manojkumarjuneja@hotmail.com] wrote:
> > Hi All,
> >           Can Suggested Label change hop-by-hop (or even dropped at
> > some transit node) like Label set may change hop-by-hop (or even
> > dropped at some transit node) ? I think both should have a link by link
> > significance as in case of label.
> >
> > Please clarify.
> >
> > Regards,
> > manoj.
> >
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