Etherchannel and STP ?

Question

Looking for a bit of tech advice..
Each of my floors connect back to the core via a single uplink (fiber). Floor switches are 3560's. Floors 5,6 and 7 and the most important b/c
of the call center / services we provide.
I would like to use redundant links for each of these floors back to the core using etherchannels on both sides of the trunk.
Etherchannel will be LACP - active active on both sides.
On the core side, I will spread the etherchannel (LACP) across line cards and on each 3560 there will be an EC between Gi0/49 and Gi 0/50.
I have tested this in the lab and it works fine..but
With STP turned on for the 3 vlans in the trunk, the re-converge time is to slow once one of the ports in the EC goes down and comes back up.
If I kill STP for the 3 vlans, then there is no relearn time when the physical port comes back up in the EC.
Given the fact that my EC config is correct, do I really need STP in this scenario ?
Advice would be appreciated.
Cheers
Dave

Answer 1

Well I would always run spanning tree protocol, no matter what. It's just not a good idea to do otherwise. Even if you don't have any "physical loops" in your network, you should always run it.
You could always run L3
But if I remember correct, on an Etherchannel, spanning tree BPDUs will follow one port within an etherchannel, but I'm not 100% correct about how that part works.