[jdev] Jabber presence traffic characterization

[JabberForum]

Hi folks,

I'm currently working on a research project for my Ph.D in which I
need to simulate network traffic during long periods of inactivity on
mobile Internet tablets. One focus application would be Jabber, and I
was wondering what would be the traffic pattern for a scenario in which
a Jabber client is running on a mobile Internet tablet for long periods
of inactivity (e.g. no data traffic, just presence traffic). Given that
I could not find any relevant literature in such subject, I'm posting in
this forum asking for help. In fact, what I need is the traffic
characterization for Jabber presence traffic, and I'm not really
concerned about Jabber messaging traffic, because the idea is to
simulate a network scenario with a connection between a Jabber client
and a Jabber server. I know Jabber uses XMPP, but I couldn't find
whether presence information was exchanged over TCP or UDP, for start.
If it is TCP, I would like to know whether this TCP connection is
"persistent" (kept open for as long as the user is logged on the
server") or "temporary" (opened each time the users updates its status
on the server and/or the user requests an update on the status of the
contacts list). Also, if anybody has knowledge of   related works on
Jabber traffic characterization and would like to share, it would be
really valuable.

Thanks in advance,

Fuad Abinader


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