We have tested XMPP (with zlib compression) over radio links (<9.6 kB) and found that chat is not too bad. The biggest problem was the TCP connection and SASL authentication (too many handshakes). It takes up to 3 minutes to connect/reconnect which is not acceptable.
Cheers Michael On Thu, Feb 14, 2008 at 8:30 PM, Peter Saint-Andre <[EMAIL PROTECTED]> wrote: > Alexander Gnauck wrote: > > Fabio Forno schrieb: > > > >> ... > >> - compression is not as bad as I thought and if time to market is > >> essential that's the only viable solution > > see also my comments in the jdev thread, I think we should all hop one > > one thread ;-) > > http://mail.jabber.org/pipermail/jdev/2008-February/026157.html > > > > I have done lots of mobile programming and tests in the past. And it > > really performs very well. ZLib does not need much CPU and the > > compression ratio with XMPP XML is amazing. > > IMHO we'll never get people to stop thinking that XML is verbose. It's > one of those memes that will never go away. > > > When somebody wants to have this binary Xml, which I think is not a bad > > idea, then plug it into XEP-0138. > > Correct. Boyd Fletcher volunteered to write the small spec for this > (basically just like XEP-0229 except defining the use of binary XML), > but nothing has been submitted yet. > > Peter > > -- > Peter Saint-Andre > https://stpeter.im/ > >
