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Re: [CCAMP] draft-ietf-ccamp-gmpls-g-694-lambda-labels and unique resource identification



sorry for the lag.
do you want to describe your use-case further in terms of what you can't do and your proposed change?
thanks,
Richard.

On Thu, Oct 15, 2009 at 8:53 AM, Lou Berger <lberger at labn.net> wrote:
Authors,
       Have you given any additional thought on the repesentation of tunable
lasers (and unique resource identification) beyond what is currently in
the draft? The current text is:
  If the node has a tunable wavelength transponder, the tuning
  wavelength is considered as a part of wavelength switching
  operation.

In the past, labels used for TE LSPs always represented a specific
resource that is uniquely identifiable by the node that allocates the
label and resource.  Such unique identification is important/required
for certan restart and other corner cases. Your current definition works
fine for fixed lasers that can only be mapped to a single fiber.  But,
the defined global label will not uniquely identify a resource on a node
when (a) tunable lasers are used, or (b) when a node supports multiple
fixed lasers that can be (optically) switched to a particular output
interface.

What are your thoughts on how to provide such link-scoped unique
resource identification in the context of your draft?

I don't think it'll be too difficult to address this critical point, and
see a couple of straightforward solutions if you'd like to discuss off-line.

Much thanks,
Lou


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