Q: Maximum number of supported Virtual Interfaces in an IPMP group ?

This was a cluster (SC3.2) question and cannot dig out answer so far !

I'm not sure I understand the question. You only put physical adapters in an IPMP group. (I guess in an Ldom they would be 'sort of' virtual)
Anyway, I'm not sure there is a limit to the number of adapters you could have in the group. However, if you really mean how many logical interfaces can you plumb up on an IPMP group, i.e. how many services could be presented, then the answer is 1024 (IIRC). Note though that I seem to recall there was some sort of exponential increase in time taken to plumb up large numbers of IP addresses in this fashion. So practically, the answer might be near to 20-30. YMMV.
Tim
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