LevelOne FGL-2870 - Manual (Page 229)

Port Configuration
3-175
3
Web – Click Configuration, Port, Port Multicast Control or Trunk Multicast Control.
Check the Enabled box for any interface, set the threshold, and click Apply.
Figure 3-102 Port Multicast Control
CLI – Specify any interface, and then enter the threshold. The following example
sets the multicast threshold at 600 packets per second for port 1.
Setting Unknown Unicast Storm Thresholds
You can protect your network from excess unknown unicast traffic by setting
thresholds for each port. Any multicast packets exceeding the specified threshold
will then be dropped.
Command Usage
• Due to an ASIC chip limitation, the supported storm control modes include:
- broadcast
- broadcast + multicast
- broadcast + multicast + unknown unicast
This means that when mulicast storm control is enabled, broadcast storm control
is also enabled (using the threshold value set by the multicast storm control
command). And when unknown unicast storm control is enabled, both broadcast
and multicast storm control are also enabled (using the threshold value set by the
unknown unicast storm control command).
• The storm control feature provided on this configuration page is a hardware level
control function. Traffic storms can also be controlled at the software level using
Console(config)#interface ethernet 1/1
4-220
Console(config-if)#switchport multicast packet-rate 600 4-227
Console(config-if)#