[Users] how to refresh REGISTER state when restarting redundant proxy

[Juha Heinanen]

Jiri Kuthan writes:

 > I would not constrain oneself, for example one can do symmetric
 > two-way client-server
 > replication. We have done that once with SER, other testimony can be
 > found in n
 > http://portal.acm.org/citation.cfm?id=1227865.1228010&coll=&dl=ACM&CFID=15151515&CFTOKEN=6184618

it would be interesting to read that paper, but i guess it is not freely
available.  so far i have not seen  any solution that would do two
the things at the same time: balance load and be resilient.

-- juha