-I've read in 3550 cisco documentation that " When the rate of multicast traffic exceeds a set threshold, all incoming traffic (broadcast, multicast, and unicast) is dropped until the level drops below the threshold level. Only spanning-tree packets are forwarded. When broadcast and unicast thresholds are exceeded, traffic is blocked for only the type of traffic that exceeded the threshold" The question is this applied also for 3560 ???
-The 2nd question is how i can rate-limit BW using this feature, because as you know, u have to determine the level of each type of traffic seperatly (Broadcast, multicast and unicast), I mean nothing let me determine the level of all traffic, thanks
about 1st answer,
the Cisco documentation is not very clear, I see ... In my understanding, when multicasting threeshold reached, all traffics are blocked (that is multicast, unicast and broadcast), like 3550. But the difference seems to be that: on 3560 all control traffics are not blocked (STP, CDP, ...), on 3550 only STP. Does make sense?
The best thing, as normally happens, is test in a lab the documentation ;)
about 2nd answer,
none ... you could specify only the type of traffic that you would control.
Another good link to understand that feature:
Let me know if it's clear enough.