mesh portal discovery

Simon McVittie simon.mcvittie at collabora.co.uk
Thu Jan 10 04:00:32 EST 2008


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On Wed, 09 Jan 2008 at 22:17:18 -0500, John Watlington wrote:
> We have a presence service which  
> provides a way for P2P applications to find
> one another, even after the IP changes.

Presence Service isn't magical. If a laptop's IP address changes, in the
link-local backend (Salut) this will most likely appear as a disconnect +
reconnect (and the user will leave all shared activities they were currently
in). This is somewhat unavoidable, but if it's a hard requirement that Salut
do its best to survive IP addresses changing, file a bug against
telepathy-salut.

In the server-based backend, an IP address change *will* cause a
disconnect and reconnect. This is definitely unavoidable, since XMPP
uses a long-lived TCP connection to the server.

    Simon
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