I have a cisco 7304 thats is currently suffering from high cpu utilization due to traffic being processed switched as opposed to cef switched. The reason for the cef drops are due to "unsupported features" however I am having trouble pin pointing why...

I am trying to bring up 4 interfaces between a WS-C3560G-48PS-S and WS-C4506-E pair of switches. 3 of the interfaces come up between the 3560 and 4500 however 1 does not.My first thoughts were that the interface on the 3560 was faulty, however if I c...