3com 5500-ei pwr Guía De Referencia

 

1-35 

z 

If the fabric function is enabled on a port of a device, you cannot configure the storm control 

function on all ports of the device.  

z 

If the broadcast-suppression  command,  multicast-suppression command or unicast 

suppression command is configured on a port, you cannot configure the storm control function on 

the port, and vice versa.  

z 

You are not recommended to set the upper and lower traffic thresholds to the same value.  

z 

The system can take one of the actions when the broadcast/multicast/unicast traffic received on a 

port exceeds the upper threshold: block and shutdown. The block action blocks only those types 

of traffic that exceed the upper thresholds instead of all types of traffic. When a type of traffic is 

blocked, it is still counted by the system and contained in the traffic statistics. The shutdown action 

automatically shutdowns the port when a type of traffic on the port exceeds the upper threshold. If 

you want to bring up the port again, you can execute the undo shutdown command or the undo 

storm-constrain { all | broadcast | multicast | unicast } command. 

 

Related commands: display storm-constrain, storm-constrain. 

# Set the control action on Ethernet 1/0/1 to block.  

<Sysname> system-view 

System View: return to User View with Ctrl+Z. 

[Sysname] interface Ethernet 1/0/1 

[Sysname-Ethernet1/0/1] storm-constrain control block 

storm-constrain enable { log | trap } 

undo storm-constrain enable 

Ethernet port view 

log: Enables log information to be output when traffic received on the port exceeds the upper threshold 

or falls below the lower threshold.  

trap: Enables trap information to be output when traffic received on the port exceeds the upper 

threshold or falls below the lower threshold.  

Use the storm-constrain  enable  command to enable log/trap information to be output when traffic 

received on the port exceeds the upper threshold or falls below the lower threshold.