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nx.os.and.cisco.nexus.switching.2nd.edition.1587143046

Nexus Switching 2nd Edition

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Congo(config-if)# glbp 100<br />

Congo(config-if-glbp)# ip 10.10.100.1<br />

Congo# show run glbp<br />

!Comm<strong>and</strong>: show running-config glbp<br />

!Time: Sun Oct 11 23:38:42 2009<br />

version 4.2(2a)<br />

feature glbp<br />

interface Vlan100<br />

glbp 100<br />

ip 10.10.100.1<br />

GLBP Priority <strong>and</strong> Preempt<br />

NX-OS supports the capability to configure different GLBP priorities. In GLBP, the priority<br />

determines the AVG for each group. The AVG is responsible for assigning virtual MAC<br />

addresses to each member of the GLBP group including itself. This enables each router to<br />

have an AVF that is responsible for forwarding traffic directed to its virtual MAC address.<br />

The default priority is 100.<br />

In Example 3-121, a priority of 200 is configured in addition to a preempt that uses the<br />

capability to wait a specified amount of time before preempting for the AVG role.<br />

Example 3-121. Configuring GLBP Priority <strong>and</strong> Preemption<br />

Click here to view code image<br />

Congo# config t<br />

Enter configuration comm<strong>and</strong>s, one per line. End with<br />

CNTL/Z.<br />

Congo(config)# int vlan 100<br />

Congo(config-if)# glbp 100<br />

Congo(config-if-glbp)# priority 200<br />

Congo(config-if-glbp)# preempt<br />

Congo(config-if-glbp)# end<br />

Congo# show run glbp<br />

!Comm<strong>and</strong>: show running-config glbp<br />

!Time: Sun Oct 11 23:49:01 2009<br />

version 4.2(2a)<br />

feature glbp<br />

interface Vlan100<br />

glbp 100<br />

ip 10.10.100.1<br />

priority 200<br />

preempt

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