Re: [Simple] COMEDIA vs MSRP Relays: Shared Connections

[Hadriel Kaplan <HKaplan at acmepacket.com>]

> -----Original Message-----
> From: simple-bounces at ietf.org [mailto:simple-bounces at ietf.org] On Behalf
> Of Ben Campbell
>
> So, why would we ever need to explicitly signal (in SDP) that a relay
> (or an endpoint for that matter) needs to create a new connection
> instead of reusing an appropriate existing one?

I don't know why the authors did it, but I can guess or some up with a plausible story: Comedia was supposed to be agnostic of the "media" being sent or its usage.  So imagine if you were doing file transfers with SIP.  If you sent a re-Invite for a new file, you'd want a new TCP connection for it, if your transfer did not have a framing/control layer in that TCP connection itself to keep the files apart.

-hadriel