I was trying to compare the two options i.e using CMAN or using USE_SHARED_SOCKET for handling the port redirection on Win NT in firewall environment. My Oracle database is in Dedicated server mode.
While refering over the net I saw an information that in case of USE_SHARED_SOCKET performance could be an issue as all the connections will be spawned onthe same port as that of the listener. Can this be a bottleneck? Can anyone please give me some information on what is the maximum/optimal limit for concurrent sessions we can have with USE_SHARED_SOCKET parameter.
Would CMAN compare favourably against USE_SHARED_SOCKET. If so why?

Thanks in advance,