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Re: [tae] [tsv-area] Transport negotiation

Joe Touch <touch@ISI.EDU> Thu, 27 November 2008 00:24 UTC

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Date: Wed, 26 Nov 2008 16:24:13 -0800
From: Joe Touch <touch@ISI.EDU>
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To: Lloyd Wood <L.Wood@surrey.ac.uk>
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Subject: Re: [tae] [tsv-area] Transport negotiation
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Lloyd Wood wrote:
...
> On choosing transport, couldn't http:// just map to
> http/<whatever-is-favoured>:// ?

we say:
	service://location/directory...

service is an application protocol
location is either a DNS name or an IP address, where the latter makes
the network protocol explicit (IPv4 or IPv6).

We could exploit the DNS SRV format here:

	service://_transport.location/directory...

> Explicitly asking for http/tcp:// or http/sctp:// would produce
> different behaviour. I don't see a need to involve DNS here -
> but I'd quite like to be able to specify http/tcp/ipv6:// or
> http/sctp/ipv4:// to force behaviour in the browser, while
> knowing that http:// just works.

http:// doesn't "just work" - it specifically indicates "HTTP over TCP"
IMO. And http://10.0.0.1/ specifies "HTTP over TCP over IPv4".

Joe
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