Re: [Seamoby] Confirmation of Concensus on Completing Seamoby Work
Jukka MJ Manner <jmanner@cs.Helsinki.FI> Fri, 21 March 2003 19:26 UTC
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Date: Fri, 21 Mar 2003 21:25:16 +0200
From: Jukka MJ Manner <jmanner@cs.Helsinki.FI>
To: James Kempf <kempf@docomolabs-usa.com>
cc: seamoby@ietf.org
Subject: Re: [Seamoby] Confirmation of Concensus on Completing Seamoby Work
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Hi, your proposal is what I was looking forward to see: a generic architecture and protocol and then an example use case with FMIP, for example. Regards, Jukka On Thu, 21 Aug 2003, James Kempf wrote: > Jukka, > > For CARD, the problem is that if the FMIP prehandover information signaling is > not specified as the vehicle, CARD must specify a separate protocol that > performs a substantially identical function. This is in direct violation of RFC > 1958 Principle 3.2 (and I quote): > > 3.2 If there are several ways of doing the same thing, choose one. > If a previous design, in the Internet context or elsewhere, has > successfully solved the same problem, choose the same solution unless > there is a good technical reason not to. Duplication of the same > protocol functionality should be avoided as far as possible, without > of course using this argument to reject improvements. > > Using the FMIP prehandover signaling does not mean that FMIP must be used for > handover. One could use GPRS or any other protocol for that purpose. > > With respect to CT, its a bit murkier, since the proposal is to directly use the > FMIP handover signaling (as opposed to the prehandover signaling) as transport > for the context and for the signaling from the Mobile Node to trigger the > context transfer. > One way we could finesse this is to define CT as an extension mechanism, then > define in an appendix how it would apply to FMIP. This would avoid the problem > of tying the base design to FMIP, while still ensuring it would work well with > FMIP. > > jak > > > ----- Original Message ----- > From: "Jukka MJ Manner" <jmanner@cs.Helsinki.FI> > To: "James Kempf" <kempf@docomolabs-usa.com> > Cc: <seamoby@ietf.org> > Sent: Friday, March 21, 2003 11:27 AM > Subject: Re: [Seamoby] Confirmation of Concensus on Completing Seamoby Work > > > > > > Hi, > > > > maybe I'm out of line here, but I would really like to see that CARD and > > CT are not tied directly to (F)MIP. The reason is that there are other > > ways to support mobile hosts, where you don't need (F)MIPv4/6. You could > > use SIP to find the initial location of the user (if needed) and then use > > a local mobility management mechanism to support the mobility within the > > local domain. You would still need CARD and CT to enable seamless > > mobility, though. > > > > Regards, > > Jukka > > > > On Thu, 21 Aug 2003, James Kempf wrote: > > > > > Folks, > > > > > > This email is to confirm the concensus at the IETF 56 meeting to proceed > toward > > > completing the Seamoby work and closing the Working Group. This email also > > > advances proposals for a couple of other issues that were not discussed at > the > > > meeting but are required to close out Seamoby. > > > > > > CARD: > > > - Drop draft-ietf-seamoby-card-requirements-02.txt. > > > - Take draft-ietf-seamoby-card-protocol-01.txt to Experimental rather > than > > > Proposed Standard > > > - Use FMIP PrxyRtSol/SolPrxyRtAdv as transport for CARD information on > > > AR-MN interface. Consult with FMIP draft editor about best way to do > > > this.. > > > - Complete protocol on AR-AR interface that will support both learning > > > based > > > and server based approaches. > > > - Protocol design complete by IETF 57 in Vienna. > > > > > > CT: > > > > > > - Drop draft-ietf-seamoby-ct-reqs-05.txt. > > > - Take draft-ietf-seamobyh-ctp-01.txt to Experimental rather than > > > Proposed Standard. > > > - Complete protocol design by IETF 57 in Vienna. > > > > > > We did not discuss the following issues, here they are with some > suggestions: > > > about how to resolve them > > > > > > - What to do with draft-ietf-seamoby-cardiscovery-issues-04.txt. > > > Since a clear statement of the problem is necessary for formulating > > > the research questions, continue to advance this document to > > > Informational. > > > > > > - Relationship between CT and FMIP. Since the purpose of > > > Seamoby is to support fast handover, focus on a design > > > that integrated well with FMIP signaling. > > > > > > Discussion? > > > > > > jak > > > > > > > > > _______________________________________________ > > > Seamoby mailing list > > > Seamoby@ietf.org > > > https://www1.ietf.org/mailman/listinfo/seamoby > > > > > > > > > _______________________________________________ Seamoby mailing list Seamoby@ietf.org https://www1.ietf.org/mailman/listinfo/seamoby
- [Seamoby] Confirmation of Concensus on Completing… James Kempf
- Re: [Seamoby] Confirmation of Concensus on Comple… Jukka MJ Manner
- Re: [Seamoby] Confirmation of Concensus on Comple… Rajeev Koodli
- Re: [Seamoby] Confirmation of Concensus on Comple… Jukka MJ Manner
- Re: [Seamoby] Confirmation of Concensus on Comple… James Kempf
- Re: [Seamoby] Confirmation of Concensus on Comple… Jukka MJ Manner
- Re: [Seamoby] Confirmation of Concensus on Comple… Eunsoo Shim
- RE: [Seamoby] Confirmation of Concensus on Comple… john.loughney
- RE: [Seamoby] Confirmation of Concensus on Comple… john.loughney
- Re: [Seamoby] Confirmation of Concensus on Comple… James Kempf
- Re: [Seamoby] Confirmation of Concensus on Comple… James Kempf
- Re: [Seamoby] Confirmation of Concensus on Comple… Eunsoo Shim
- RE: [Seamoby] Confirmation of Concensus on Comple… john.loughney
- Re: [Seamoby] Confirmation of Concensus on Comple… James Kempf
- Re: [Seamoby] Confirmation of Concensus on Comple… Eunsoo Shim
- Re: [Seamoby] Confirmation of Concensus on Comple… James Kempf
- Re: [Seamoby] Confirmation of Concensus on Comple… James Kempf