Broadcast Storm Control

Hi everybody,
I’m suspected about broadcast storm control feature on switch. Could anyone please advice me?
1. When the broadcast storm control is triggered, can normal data packets (not broadcast packets) pass the switch?
2. If the network looping is occurred at unmanaged switch that doesn’t support spanning tree protocol and it connects to the managed switch that broadcast storm control is turned on, does it help this issue?
Managed switch
|
|
Unmanaged switch
||
\/<--- network looping
Thanks for advance,
Nitass

1. Unicast packets and multicast packets are not affected when u enable broadcast storm control. Multicast packets will be affected only if you enable multicast storm control on the switchport.
2. I have no experience in a setup such as this but the behavior of the storm-control broadcast level command suggests that the switch port will drop all broadcasts headed through the port (in both directions) for a specified period of time.
This however, still does not stop the source of the broadcast (i.e. the multiple links running to the un managed switch) so I would presume that the broadcasts might die down for a small period of time but they will resurface as the unmanaged switch would continue generating broadcast packets.
Thus the port on the managed switch would come back to normal state, only to go back into broadcast storm control state and stop all broadcasts all over again.
HTH
Please rate posts that help.
Regards
Arvind

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