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

We'd be specifying the "service" more accurately with mechanism/ 
transport. (actually,
/ is reserved for uris according to RFC2396 and using it would open a  
can of syntactic worms, so let's use mechanism-transport as dash is  
fine. I see Preethi skipped delimiters with her "httpsctp"; https- vs  
http- follows the usual security naming, at least.)

If the transport is unspecified, it would go to the default of http- 
tcp-ipv4: - so http://10.0.0.1/ would work as expected by being  
equivalent to http-tcp-ipv4://10.0.0.1/ , while http-tcp- 
ipv6://10.0.0.1/ generates an error.

And yes, http-tcp would be the usual expected mapping for this  
superset of the "http:" defined in RFC2616, that currently floats  
between v4 and v6 depending on local setup. Configuring away from that  
would be as unusual as turning off v4 entirely.

On 27 Nov 2008, at 00:24, Joe Touch wrote:

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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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DTN work: http://info.ee.surrey.ac.uk/Personal/L.Wood/saratoga/

<http://info.surrey.ac.uk/Personal/L.Wood/><L.Wood@surrey.ac.uk>

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