Thread View: comp.protocols.misc
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Started by ken
Wed, 10 Jun 1987 19:32
On the TCP/IP versus ISO "debate"
Author: ken
Date: Wed, 10 Jun 1987 19:32
Date: Wed, 10 Jun 1987 19:32
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Many groups, like my ISIS project, The Ameoba project, and the V project at Stanford see a need for broad support of protocols that conform to the ISO standards but go beyond the basic TCP/IP stuff (for example, to include multicasting). This has lead to a bit of a debate, and as a result DARPA has asked the DSAB to set up a task force on protocols, headed by Dave Cheriton. People interested in this issue may want to follow the work of this task force. We have met once so far, and will meet again later this year. To simplify dicussion, I think people should keep in mind that the ISO standards really don't specify any particular protocol and hence it doesn't make sense to talk about ISO versus TCP/IP. At the same time, there is a need to think about TCP/IP versus XNS, for example, and also to try and consolidate the many "standards" that are being created for session level protocols and for multicasting before things get out of hand. I don't want to get drawn into a long bboard discussion, but at some point in the future the task force will certainly produce an RFC that people could get to fairly easily and perhaps a copy could be posted to this news group too. An RFC is a request for comments, so comments would be appropriate then. My personal interest is in seeing less of an emphasis on RPC and more of an emphasis on multicasting and reliability issues. We really need to watch out or we will have to live with a generation of networks that are really good at RPC just as we all discover that reliable multicasting is where its really at... (this is a red herring). Other members of the task force have their own biases, but I think we cover quite a spectrum of interests reprsenting industry as well as academics. Stay tuned, there will be interesting stuff to debate. Ken Birman
Re: On the TCP/IP versus ISO "debate"
Author: Marshall Rose
Date: Thu, 11 Jun 1987 16:56
Date: Thu, 11 Jun 1987 16:56
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> To simplify dicussion, I think people should keep in mind that the ISO
> standards really don't specify any particular protocol and hence it doesn't
> make sense to talk about ISO versus TCP/IP.
Uh? What? Wrong.
ISO standards specify gobs of protocols. Where do you want to
start?
ISO Transport Protocol (ISO 8073)
ISO Session Protocol (ISO 8327)
ISO Presentation Protocol (ISO 8823)
ISO File Transfer, Access, and Management (ISO 8571)
These are four. I've got over fifty sitting back in my office, and
I'm a very selective reader!
It makes a great deal of sense to talk about the ISO protocol suite
vs. the TCP/IP protocol suite. Although they both have layered
architectures, they cut up the cake differently. Further, the
protocols they use diverge significantly once you start climbing to
the higher layers.
/mtr
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