Re: [Tsvwg] architecture for transport layer mobility
"Seok J. Koh" <sjkoh@cs.knu.ac.kr> Mon, 11 October 2004 00:50 UTC
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From: "Seok J. Koh" <sjkoh@cs.knu.ac.kr>
To: weddy@grc.nasa.gov, tsvwg@ietf.org
References: <20041008183702.GJ27317@grc.nasa.gov>
Subject: Re: [Tsvwg] architecture for transport layer mobility
Date: Mon, 11 Oct 2004 09:47:58 +0900
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Hello Wesley, I think this kind of work will be very useful so to foster the further refinements of the existing several approaches for transport and network layer mobility. Basically, this will help service providers offer a lot of mobility solutions to users. Two minor comments on your draft: 1) We may consider SIP (session initiation protocol) as a candidate location management scheme in the application layer 2) As such, a transport layer mobility may be used tegether with the other network or application layer mobility schemes such as Mobile IP and SIP, if necessary. On use of MIP and mSCTP, you might refer to this I-D. http://www.ietf.org/internet-drafts/draft-sjkoh-mobile-sctp-mobileip-04.txt Seok J. Koh http://protocol.knu.ac.kr/ ----- Original Message ----- From: "Wesley Eddy" <weddy@grc.nasa.gov> To: <tsvwg@ietf.org> Sent: Saturday, October 09, 2004 3:37 AM Subject: [Tsvwg] architecture for transport layer mobility At the San Diego meeting last August, Allison closed the meeting by talking very broadly about hosts having multiple addresses, and how this affects the transport layer [1]. One of the potential uses is for handling host mobility at the transport layer. This has been done experimentally several times in several different transport protocols, but not within any specific unified architecture. For example, over the years there have been mobile SCTP, TCP, and DCCP proposals that all have used different code for supporting movement detection (finding out when the local host has moved) and doing location management (providing some way for the mobile node to be reached for new connections). These are two common problems for all transport layer mobility protocols, which happen to be independent of the particular transport protocol used. It makes sense to define a common framework to provide this functionality, so that individual transports don't have to worry about it. As a first step, we've begun exploring a simple architecture to provide these two services using existing standards (eg neighbor discovery, dynamic DNS, etc), and described our architecture in: http://www.ietf.org/internet-drafts/draft-eddy-tlmarch-00.txt We would appreciate any feedback from the community on this, and would welcome the opportunity to speak breifly in Washington if the group is interested. We feel that while there is little new here, providing the common framework for transport protocols to easily develop mobility support with little replication of effort, is an important step. Additionally, this draft attempts to provide a detailed comparison of the architectural differences between transport layer mobility and Mobile IP, the predominant mobility protocol which operates at a completely different layer and has different deployment and stack-design considerations. -Wes [1] See meeting notes at http://www.ietf.org/proceedings/04aug/261.htm > _______________________________________________ > tsvwg mailing list > tsvwg@ietf.org > https://www1.ietf.org/mailman/listinfo/tsvwg > _______________________________________________ tsvwg mailing list tsvwg@ietf.org https://www1.ietf.org/mailman/listinfo/tsvwg
- [Tsvwg] architecture for transport layer mobility Wesley Eddy
- Re: [Tsvwg] architecture for transport layer mobi… Joe Touch
- RE: [Tsvwg] architecture for transport layer mobi… Henderson, Thomas R
- Re: [Tsvwg] architecture for transport layer mobi… Seok J. Koh
- Re: [Tsvwg] architecture for transport layer mobi… Seok J. Koh
- Re: [Tsvwg] architecture for transport layer mobi… Wesley Eddy
- Re: [Tsvwg] architecture for transport layer mobi… Joe Touch
- Re: [Tsvwg] architecture for transport layer mobi… Joe Touch
- Re: [Tsvwg] architecture for transport layer mobi… Wesley Eddy
- Re: [Tsvwg] architecture for transport layer mobi… Wesley Eddy
- Re: [Tsvwg] architecture for transport layer mobi… Joe Touch
- Re: [Tsvwg] architecture for transport layer mobi… Salvatore Loreto