I am designing a distributed system where I would like to propagate state information within a "multicast" group. Each member of the mutlciast group is interested in knowing about the state of the others and each member periodically sends out state update notifications. I should like to design this on top of SIP as SIP gives me the necessary application layer routing and request proxying that allows me to deploy such an application on the internet. I am wondering if SUBSCRIBE / NOTIFY is the best model for this as NOTIFY is a transaction and that could lead to response Implosion. Is there any other method already defined that is in effect a one way notify (ie. not a transaction).
For my application, the state is temporal data (stale state is meaningless) so Reliability is not a major concern and I can use error correction and Negative Acknowledgement ( like in Scalable Reliable Multicast ) for Reliablity should I need it.
Thanks and best regards!
Ranga.
--
M. Ranganathan
Advanced Networking Technologies Divsion,
National Institute of Standards and Technology (NIST),
100 Bureau Drive, Stop 8920, Gaithersburg, MD 20899.
tel:301 975 3664 , fax:301 590 0932 , http://www.antd.nist.gov/~mranga
Advanced Networking Technologies For the People!
_______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
