3.3.3 Storm Control
Storm Control:
Also known as traffic suppression, this
feature selectively blocks the transfer of broadcast
packets from the switch. When different types of
broadcast packets reach the set threshold of a port, the
switch automatically discards excessive packets, to
prevent being disrupted by a broadcast, multicast, or
unicast traffic storm on physical interfaces.
Observations
1. Broadcast means transmitting packets to all hosts in
the network.
2. Multicast means transmitting packets to a host group
in the network.
3. Unicast means transmitting packets to a specific host
in the network.
4. Unknown unicast (flood) means transmitting the
unicast packets with an unknown destination MAC
address.
5. The switch is unable to totally control broadcast
packets. Instead,it can only limit the transmitting rate for
broadcast packets.
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