Cisco me 3400 Guia Do Programa

If you do not enter the rep preempt delay seconds interface configuration command on the primary edge 
port to configure a preemption time delay, the default is to manually trigger VLAN load balancing on 
the segment. Be sure to complete all other segment configuration before manually preempting VLAN 
load balancing. When you enter the rep preempt segment segment-id command, a confirmation 
message appears before the command is executed because preemption can cause network disruption.

Beginning in privileged EXEC mode, follow these steps on the switch that has the segment primary edge 
port to manually trigger VLAN load balancing on a segment:

You can configure the switch to send REP-specific traps to notify the SNMP server of link operational 
status changes and port role changes. Beginning in privileged EXEC mode, follow these steps to 
configure REP traps:

To remove the trap, enter the no snmp mib rep trap-rate global configuration command.

This example configures the switch to send REP traps at a rate of 10 per second:

Switch(config)# snmp mib rep trap-rate 10 

rep preempt segment segment-id

Manually trigger VLAN load balancing on the segment. 

You need to confirm the command before it is executed.

View REP topology information.

Enter global configuration mode.

snmp mib rep trap-rate value 

Enable the switch to send REP traps, and set the number of 
traps sent per second. The range is from 0 to 1000. The default 
is 0 (no limit imposed; a trap is sent at every occurrence).

end 

Return to privileged EXEC mode.

Verify the REP trap configuration.

(Optional) Save your entries in the switch startup configuration 
file.