PLANET WGSW-50040 - Manual (Page 99)

packets allowed to pass per second; for 10GB ports, the unit is KPPS, that is, the value of
multiplies 1000 makes the number of packets allowed, so the value should be less than
14880.
Command mode:
Port Mode.
Default:
No limit is set by default. So, broadcasts, multicasts and unknown destination unicasts are allowed
to pass at line speed.
Usage Guide:
All ports in the switch belong to a same broadcast domain if no VLAN has been set. The switch will
send the above mentioned three traffics to all ports in the broadcast domain, which may result in
broadcast storm and so may greatly degrade the switch performance. Enabling Broadcast Storm
Control can better protect the switch from broadcast storm. Note the difference of this command in
10Gb ports and other ports. If the allowed traffic is set to 3, this means allow 3,120 packets per
second and discard the rest for 10Gb ports. However, the same setting for non-10Gb ports means
to allow 3 broadcast packets per second and discard the rest.
Example:
Setting ports 8-10 (1000Mbps) allow 3 broadcast packets per second.
Switch(config)#interface ethernet 1/8-10
Switch(Config-Port-Range)#rate-suppression broadcast 3
3.1.12 rate-violation
Command:
rate-violation [recovery ]
no rate-violation
Function:
Enable the limit on packet reception rate function, and set the packet reception rate in one second,
the no command delete the function of limit on packet reception rate.
The rate-violation means the packet reception rate, that is, the number of received packets per
second, regardless of their type.
Parameters:
the max number of packets allowed to pass through the port.
recovery: means after a period of time the port can recover “Shutdown” to “UP” again.
is the timeout of recovery. For example, if the shutdown of a port happens after the packet
reception rate exceeding the limit, the port will be “up” again when the user-defined timeout period
expires. The default timeout is 300s, while 0 means the recovery will never happen.