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Catalyst 3750 Metro Switch Command Reference
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Chapter 2 Catalyst 3750 Metro Switch Cisco IOS Commands
rep preempt segment
rep preempt segment
Use the
rep preempt segment
privileged EXEC command to manually start Resilient Ethernet Protocol
(REP) VLAN load balancing on a segment.
rep preempt segment
segment_id
Syntax Description
Defaults
Manual preemption is the default behavior.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
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.
Enter this command on the switch on the segment that has the primary edge port.
If you do not configure VLAN load balancing, entering this command results in the default
behavior—the primary edge port blocks all VLANs.
You configure VLAN load balancing by entering the
rep block port
{
id
port-id | neighbor_offset |
preferred
}
vlan
{
vlan-list
|
all
} interface configuration command on the REP primary edge port before
you manually start preemption.
There is not a
no
version of this command.
Examples
This example shows how to manually trigger REP preemption on segment 100 with the confirmation
message:
Switch)#
rep preempt segment 100
The command will cause a momentary traffic disruption.
Do you still want to continue? [confirm]
Related Commands
segment-id
ID of the REP segment. The range is from 1 to 1024.
Release
Modification
12.2(40)SE
This command was introduced.
Command
Description
Configures VLAN load balancing.
[
detail
] Displays REP configuration and status for all interfaces or the specified
interface.