Cisco Systems A9014CFD manual Setting up Manual Preemption for Vlan Load Balancing, 12-20

Chapter 12 Configuring Resilient Ethernet Protocol

Configuring Resilient Ethernet Protocol (REP)

!

interface GigabitEthernet5/2 switchport

switchport trunk encapsulation dot1q switchport trunk allowed vlan 1,2 switchport mode trunk

!

interface Vlan1 no ip address

!

interface Vlan2

ip address 1.1.1.3 255.255.255.0

Setting up Manual Preemption for VLAN Load Balancing

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-idcommand, a confirmation message appears before the command is executed because preemption can cause network disruption.

Note Ethernet over Multiprotocol Label Switching (EoMPLS) is supported on the Cisco ASR 901 router for Cisco IOS Release 15.2(2)SNG and later releases.

Complete these steps on the switch that has the segment primary edge port to manually trigger VLAN load balancing on a segment:

SUMMARY STEPS

1.enable

2.configure terminal

3.rep preempt segment segment-id

4.end

5.show rep topology

DETAILED STEPS

	Command or Action		Purpose
Step 1
	enable		Enables privileged EXEC mode.
			• Enter your password if prompted.
	Example:
	Router> enable
Step 2
	configure terminal		Enters global configuration mode.
	Example:
	Router# configure terminal
		Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
12-20			OL-23826-09