On 5 July 2012 23:34, Todd Herman <[email protected]> wrote: > I wanted to check if there is an existing XMPP (experimental or otherwise) > related to synchronizing XMPP servers and allowing roaming? We need to > allow users to seamlessly switch servers in mid-operation. Has anyone > looked into doing this or have any thoughts on an approach?
No such XEP exists. While a nice idea in theory, a protocol allowing such free roaming is actually quite complex, and XMPP is not it. The primary problem is that the user identifier in XMPP is the JID, which contains "hard-coded" routing information. Thus moving a user to a different server will result in them having a different JID. However a JID is also the basis for everything else in XMPP requiring identity - subscriptions, access control, etc. Roaming in some form within a single domain is possible, and various XMPP server implementations support clustering for this purpose. However clustering itself is quite complex and implementation-specific. Therefore no XEP exists for even this. This shouldn't be a problem if you stick to one implementation, though I don't actually know of any that support literally migrating a live session from one server to another. Possibly something like that could be implemented using XEP-0198 as a basis. Hope this helps, Matthew
