[jdev] Re: XMPP Ping method?

[Dave Cridland]

On Fri Nov  3 22:48:32 2006, Tobias Markmann wrote:
> I didn't know SCTP since you've mentioned it and have some 
> questions:
> 
>   1. Is SCTP TCP compatible? When a server provides SCTP protocol on
>   port 5222 for example normal TCP clients can still connect?

Nope. Or yes. It depends on what you're asking for. "port 5222" is 
transport-protocol specific, so SCTP, TCP, and UDP can all co-exist 
on that port, but the server needs to listen to those ports 
independently.

SCTP is also message based, which means it can cope with stanza ACKs 
by using one message per N stanzas, but on the other hand it means 
it's very different to TCP.

I don't think it's a solution, as such, and the multi-homing/mobility 
capabilities that have been mentioned exist in several forms at the 
IP layer, such as MIP6, and perhaps most interestingly HIP.

Dave.
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