is there ever a good reason to increase mac table aging time and if so, is there a real world maximum short of the max allowed range?

I have a 2924_XL s3witch that continuosly gets the following message:Nov 28 08:16:55 EST: %RTD-1-ADDR_FLAP: FastEthernet0/1 relearning 11 addrs per min. debug info shows macs on different ports every minute. Can anyone explain this to me. everythin...

Can you advise me as to the best way to interconnect cat5500 switches such that spannig tree is not required