Waveband Switching [Was Re: draft-douville-ccamp-gmpls-waveband-extensions-05.txt]

["Adrian Farrel" <adrian@olddog.co.uk>]

Hi Dimitri,

I'm not sure what you are asking.

I think you are asking "Does anyone out there care about waveband switching?"

We might refine this question for:
a. now
b. in the next two years
c. sometime
d. never.

It is slightly interesting to look at the 9/22 respondents to the GMPLS implementation
survey (November 2002).
Of these, two are software vendors and one a test tool manufacturer. All are forced to
implement, by definition.
Of the others, one flagged "future", one was a CR-LDP product, and one a research
implementation.
So I could argue that this leaves us with just three.

But it is probably more important to find out where we stand now.

So, question to the list...

Who believes that we need to complete the work on waveband switching in order to meet real
implementation or deployment requirements?

Thanks,
Adrian

> as mentioned in the additional ccamp webpage, this draft plugs a hole however
> interest shown on this list is certainly low
>
> but so at the end of the day one may ask if this is the case
>
> 1) how implementations that have been reported in
> <http://www.ietf.org/IESG/Implementations/MPLS-SIGNALING-Implementation.txt>
>
> 9 supports waveband labels so do we have to make the assumption that all of them
> support only inverse multiplexing mechanism and/or wavelength concatenation ?
>
> 2) then what about Fiber SC ?
>
> this leaves the impression that the FSC value has been sometimes used when
> switching the whole content of the container (ie the fiber) while following a
> strict interpretation it is meant to only address spatial switching per GMPLS ARCH:
>
> "5. Fiber-Switch Capable (FSC) interfaces:
>
>     Interfaces that switch data based on a position of the data in the
>     (real world) physical spaces. An example of such an interface is
>     that of a PXC or OXC that can operate at the level of a single or
>     multiple fibers."
>
> thanks,
> - dimitri.
>
> -------- Original Message --------
> Subject: I-D ACTION:draft-douville-ccamp-gmpls-waveband-extensions-05.txt
> Date: Thu, 22 Jul 2004 15:33:35 -0400
> From: Internet-Drafts@ietf.org
> To: i-d-announce@ietf.org
>
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
>
>
> Title : Extensions to Generalized Multi-Protocol Label Switching
>   in support of Waveband Switching
> Author(s) : R. Douville, et al.
> Filename : draft-douville-ccamp-gmpls-waveband-extensions-05.txt
> Pages : 11
> Date : 2004-7-22
>
> Generalized Multi-Protocol Label Switching (GMPLS) extends the MPLS
>     control plane to encompass layer 2, time-division, wavelength and
>     spatial switching. Along with the current development on IP over
>     optical switching, considerable advances in optical transport
>     systems based on the multiple optical switching granularities have
>     been developed.
>
>     Currently, GMPLS considers two layers of optical granularity using
>     wavelengths and fibers. By introducing an extended definition of
>     waveband switching, this document specifies the corresponding GMPLS
>     extensions, to further integrate optical multi-granularity and
>     benefit from the features of the corresponding switching layers.
>
> A URL for this Internet-Draft is:
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http://www.ietf.org/internet-drafts/draft-douville-ccamp-gmpls-waveband-extensions-05.txt
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