3com 5500-ei pwr Instrução De Instalação

 

1-10 

Enable log/trap information to 
be output when a type of traffic 
received on the port exceeds 
the upper threshold or falls 
below the lower threshold 

storm-constrain enable { log | 
trap } 

Optional 

Enabled by default.  

Return to system view 

— 

Set the interval at which the 
port collects traffic statistics 

storm-constrain interval 
interval-value 

Optional 

It is 10 seconds by default. 

 

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 

If you specify the block keyword when executing the storm-constrain control command, only the 

packets beyond the upper thresholds are blocked when the overall traffic exceeds the upper 

threshold. In this case, the blocked packets are still taken into account when generating traffic 

statistics. If you specify the shutdown keyword when executing the command, the port will be shut 

down when the traffic passing through the port exceeds the upper threshold. You bring up the port 

again by executing the undo shutdown or the undo storm-constrain { all  | broadcast | 

multicast | unicast } command. 

 

During a short period after you connect your switch to another device, the connecting port may go up 

and down frequently due to hardware compatibility, resulting in service interruption.  

To avoid situations like this, you may introduce a port state change delay.  

 

The port state change delay takes effect when the port goes down but not when the port goes up. 

 

Follow these steps to set the port state change delay: 

Enter system view 

— 

Enter Ethernet interface 
view 

interface interface-type 
interface-number 

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