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Re: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching Routers

"Gabriele Maria Galimberti (ggalimbe)" <ggalimbe@cisco.com> Fri, 31 January 2014 10:35 UTC

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From: "Gabriele Maria Galimberti (ggalimbe)" <ggalimbe@cisco.com>
To: Daniel King <daniel@olddog.co.uk>, 'CCAMP' <ccamp@ietf.org>
Thread-Topic: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching Routers
Thread-Index: AQHPHnAcUqnGK5MZTkidP1a0HuaLvA==
Date: Fri, 31 Jan 2014 10:35:07 +0000
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Subject: Re: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching Routers
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Hi Daniel 

I have a change request on the label:

0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0  1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |Grid | C.S.  |    Identifier      |               n                |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |       m     |                     Reserved                    |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


I'd like to extend the m value range to 16 bits to have the possibility to
Allocate the whole C-band spectrum if needed.
With 8 bits we can allocate only 60% of it.
Another reason is that when new technologies will be available the
Slot Width Granularity may increase (to 6.25GHz or better).

So the proposed change is:

0                   1                   2                   3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0  1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Grid | C.S. |    Identifier    |                n              |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                m              |            Reserved           |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


 m field = 16 bits.


Best Regards, 

Gabriele



Gabriele Galimberti
Technical Leader
Cisco Photonics Srl


Via Philips, 12
20900 - Monza (MI)
Italy
www.cisco.com/global/IT/ <http://www.cisco.com/global/IT/>

ggalimbe@cisco.com
Phone :+39 039 2091462
Mobile :+39 335 7481947
Fax :+39 039 2092049
















On 1/29/14 6:06 PM, "Daniel King" <daniel@olddog.co.uk> wrote:

>Hi CCAMP'rs,
>
>The authors are planning a revision of this I-D before London, but the
>only
>changes will be the addition of an Implementation Status section as per
>RFC6982.
>
>It seems to us that this I-D is stable and that there are no further
>technical issues. The label format documented in the I-D has been picked
>up
>by the RSVP-TE extensions draft and the ongoing OSPF work.
>
>We would like to take this opportunity to solicit feedback from the
>working
>group:
>
>- Are there any changes you would like to see in the draft?
>- Are you happy with the label format described?
>- What do you think the next steps should be for this draft?
>
>Thanks,
>Dan (for the authors)
>
>
>_______________________________________________
>CCAMP mailing list
>CCAMP@ietf.org
>https://www.ietf.org/mailman/listinfo/ccamp

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