Re: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching Routers
"Giovanni Martinelli (giomarti)" <giomarti@cisco.com> Mon, 03 March 2014 17:08 UTC
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From: "Giovanni Martinelli (giomarti)" <giomarti@cisco.com>
To: "Zhangxian (Xian)" <zhang.xian@huawei.com>
Thread-Topic: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching Routers
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Date: Mon, 03 Mar 2014 17:07:56 +0000
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Cc: CCAMP <ccamp@ietf.org>
Subject: Re: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching Routers
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Hi Xian, sorry for the late reply On 08 Feb 2014, at 11:36, Zhangxian (Xian) <zhang.xian@huawei.com> wrote: > Hi, Giovanni, > > When we resize a LSP, the label value needs to change for sure in transport networks. An example would be OTN and captured in Section 7 of draft-ietf-ccamp-gmpls-signaling-g709v3-12. The procedure described/cited there should also be applicable to resizing a LSP in flexi-grid as well, if I understand correctly. GM> yep that’s a good starting point > The difference is, in OTN the data plane can support hitless adjustment of the bandwidth, thus the need of explanation of interaction of both planes; not sure it is the case for flexi grid at the moment. GM> IMHO yes. > So, I wonder if change a bandwidth of a flex-lsp means taking the steps of tearing down the old one and establishing a new one, thus already supported by RFC3209 from control plane perspective? > GM> this was a bare minimum option > I think we are discussing some advanced issues and currently won't be needed in solutions drafts. If needed, a note may be added somewhere to the framework draft. Thoughts? > GM> I would say yes… Cheers G > Regards, > Xian > > -----Original Message----- > From: CCAMP [mailto:ccamp-bounces@ietf.org] On Behalf Of Giovanni Martinelli (giomarti) > Sent: 2014年1月31日 23:55 > To: Daniel King > Cc: CCAMP > Subject: Re: [CCAMP] Generalized Labels for the Flexi-Grid in LSC Label Switching Routers > > Hi Dan, > > a comment from my side. Nothing precluding the draft to progress but having the m value in the label make me thinking. > > I know there was lots of discussion in the past and likely the result is somewhat described section 4.2 however the use case I have in mind is when an established flex-lsp (hence a w/ flexgrid labels) needs to be enlarged/shrinked. This operation implies a label value change. > > Now, does this consideration needs room in this draft /within framework /nowhere? I don’t have strong opinion just throwing a doubt on the table. > > Cheers > G > > > On 29 Jan 2014, at 18:06, 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)