Re: [ANCP] IETF 69 ANCP meeting minutes
Lloyd Wood <L.Wood@surrey.ac.uk> Fri, 10 August 2007 19:07 UTC
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Date: Fri, 10 Aug 2007 20:07:32 +0100
To: "Wojciech Dec (wdec)" <wdec@cisco.com>, ancp@ietf.org
From: Lloyd Wood <L.Wood@surrey.ac.uk>
Subject: Re: [ANCP] IETF 69 ANCP meeting minutes
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I've archived a copy of the slides and draft for extending ANCP at: http://personal.ee.surrey.ac.uk/Personal/L.Wood/publications/internet-drafts/draft-floreani-ancp-wireless/ ANCP could be one way to communicate a modem's varying speed to the router a hop along via simple information reports, but, given that this applies ANCP outside of its trusted headend domain, there are probably a lot of (unfounded?) security concerns about crossing the divide of ownership I suppose that the problem of communicating varying link speeds to a connected upstream/downstream router needs to be solved for DSL in general somehow by the DSL forum -- and then that method, whatever it is, could then be generalised beyond DSL to work for other modem technologies. It's certainly not a problem central to ANCP or this workgroup. cheers, L. [..] >15 mins - Extension of ANCP for Satellite and Terrestrial Wireless Modem >Networks - Lloyd Wood (lwood@cisco.com) >http://www.ietf.org/internet-drafts/draft-floreani-ancp-wireless-00.txt > >Been dealing with problem with which ANCP can help >Smart adaptive modems need to update routers with current satellite >modem speed. Similar to DSL. > >Looking at adding wireless class extension to ANCP. > >Point-multipoint and point-point cases. Eventually moving to point to >point. > >Use ethernet between modem and router because of cost. Serial would be >best option, but not going to happen. > >ANCP works across TCP. Given that satellite delay is an issue, doing >ANCP local looks like the answer. > >Multicast CAC use-case also of interest to satellite. > >Interested in comments and whether this is something for ANCP. > >Francois : Seems to match what ANCP does. But isn't it overkill to use >GSMP based protocol just to sync line rate? > >Lloyd : This may be overkill, but we have working code and it will work. >Just software. However a lot of framework is not used. But in deployment >scenarios the fuller framework may get used to cover other access types. > >Sanjay: ANCP between NAS and modem - ok. But ANCP between CPE and modem >raises questions. Is CPE trusted device? ANCP is typically contained to >trusted domain > >Discussion on managed CPE options. Are CPE and NAS operated by different >companies. > >Lloyd: Depends on provider. 50/50 case in satellite industry; some >provide router+modem, others only modem. > >Lloyd: Modems turning to L3 device, part of the problem. Is ANCP >suitable. > >Woj: Do you have specific issues with the protocol spec for satellite >use? > >Lloyd: ANCP is an overkill, but it has all we need. Fine for our use. > >More discussion on CPE side aspect of modem and router. >In DSL case there appears to be the same problem on the home side, >between router and modem. Problem seems to be applicable to DSL too. > >Woj: So far we focused on the service provider side, not the home. Home >is an un-explored area for us. > >Wojciech : Broader question is how do we ensure extensibility of ANCP to >other technologies? Current text protocol spec to be very DSL tech type >centric. Need to decouple function from tech type so that it can be >re-used by other tech types. >Also need to define extensibility path for TLVs. > >Sanjay: For each tech type do we need enumerate the TLVs? > >Woj: No. > >Usual search for blue sheets... _______________________________________________ ANCP mailing list ANCP@ietf.org https://www1.ietf.org/mailman/listinfo/ancp
- [ANCP] IETF 69 ANCP meeting minutes Wojciech Dec (wdec)
- Re: [ANCP] IETF 69 ANCP meeting minutes Lloyd Wood