Re: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching Routers
"Adrian Farrel" <adrian@olddog.co.uk> Fri, 31 January 2014 11:44 UTC
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From: Adrian Farrel <adrian@olddog.co.uk>
To: "'Gabriele Maria Galimberti (ggalimbe)'" <ggalimbe@cisco.com>, 'Daniel King' <daniel@olddog.co.uk>, 'CCAMP' <ccamp@ietf.org>
References: <005901cf1d14$69d2d550$3d787ff0$@olddog.co.uk> <CF11374C.56B52%ggalimbe@cisco.com>
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Date: Fri, 31 Jan 2014 11:44:30 -0000
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Subject: Re: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching Routers
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Hi Gabriele, IIRC this topic has come up in various discussions. I think the discussion ran aground when we tried to understand what ITU-T SG15 Q6 data plane capabilities this increased value of "m" modelled. I believe that we could easily increase the size of the m field, but as I understand the status of the Q6 work, we would still need to constrain its use as defined in G.694.1. Maybe that is the best compromise: it gives us scope for future expansion, but it makes (for now) the value strictly limited according to the current definition of the data plane we are controlling. Thoughts? Adrian > -----Original Message----- > From: CCAMP [mailto:ccamp-bounces@ietf.org] On Behalf Of Gabriele Maria > Galimberti (ggalimbe) > Sent: 31 January 2014 10:35 > To: Daniel King; 'CCAMP' > Subject: Re: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching > Routers > > 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 > > _______________________________________________ > CCAMP mailing list > CCAMP@ietf.org > https://www.ietf.org/mailman/listinfo/ccamp
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Ramon Casellas
- [CCAMP] Generalized Labels for the Flexi-Grid in … Daniel King
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Iftekhar Hussain
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Lou Berger
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Adrian Farrel
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Loa Andersson
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Giovanni Martinelli (giomarti)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Giovanni Martinelli (giomarti)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Oscar González de Dios
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Daniele Ceccarelli
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Curtis Villamizar
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Iftekhar Hussain
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Loa Andersson
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Iftekhar Hussain
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Zafar Ali (zali)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Loa Andersson
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Huub van Helvoort
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Zafar Ali (zali)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Ramon Casellas
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Zafar Ali (zali)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Huub van Helvoort
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Lou Berger
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Adrian Farrel
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Loa Andersson
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Jonas Mårtensson
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Giovanni Martinelli (giomarti)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Ramon Casellas
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Huub van Helvoort
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Adrian Farrel
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Jonas Mårtensson
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Adrian Farrel
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Zhangxian (Xian)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Iftekhar Hussain
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Iftekhar Hussain
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Zhangxian (Xian)
- [CCAMP] Flexi-Grid control plane requirements - w… Ramon Casellas
- Re: [CCAMP] Flexi-Grid control plane requirements… Oscar González de Dios
- Re: [CCAMP] Flexi-Grid control plane requirements… Iftekhar Hussain
- Re: [CCAMP] Flexi-Grid control plane requirements… Zhangxian (Xian)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Giovanni Martinelli (giomarti)
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Adrian Farrel
- Re: [CCAMP] Generalized Labels for the Flexi-Grid… Giovanni Martinelli (giomarti)