HI Claudio,
I don't know much about T3 protocol, in short you can load balance almost anything really, the issue becomes to how granular and if you can do any intelligent inspection besides source and dest ip and if there are multiple different connections on different ports. These last points sort of decide whether it's worth it.
- If you find the specifics about the connection ( port, type of protocol and type of connection ( long-lived or short lived) you should be able to setup a basic rule to test. A sniffer trace will give you the most information if oracle website does not explain T3 in detail.
- From a quick search there also looks to be a method to encapsulate T3 inside a http packet on weblogic servers, if this were the case then you could do some deep packet inspection with regex etc to get more granular load balancing
http://forums.oracle.com/forums/thread.jspa?threadID=706909
I would think it's defintely worth looking at both options
cheers,
Chris