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FTOS Configuration Guide for the C-Series - Force10 Networks

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Step Task Command Command Mode<br />

2<br />

Create a failover group and specify<br />

<strong>the</strong> two port-channels that will be<br />

members of <strong>the</strong> group.<br />

In Figure 123, LAGs 1 and 2 have been placed into to <strong>the</strong> same failover group.<br />

Figure 123 Configuring Shared LAG State Tracking<br />

View <strong>the</strong> failover group configuration using <strong>the</strong> show running-configuration po-failover-group<br />

command, as shown in Figure 124.<br />

Figure 124 Viewing Shared LAG State Tracking in <strong>the</strong> Running-configuration<br />

In Figure 125, LAGs 1 and 2 are members of a failover group. LAG 1 fails and LAG 2 is brought down<br />

upon <strong>the</strong> failure. This effect is logged by Message 18, in which a console message declares both LAGs<br />

down at <strong>the</strong> same time.<br />

Figure 125 Shared LAG State Tracking<br />

group number port-channel<br />

number port-channel<br />

number<br />

R2#config<br />

R2(conf)#port-channel failover-group<br />

R2(conf-po-failover-grp)#group 1 port-channel 1 port-channel 2<br />

R2#show running-config po-failover-group<br />

!<br />

port-channel failover-group<br />

group 1 port-channel 1 port-channel 2<br />

R2(conf)# port-channel failover-group<br />

R2(conf-po-failover-grp)# group 1 port-channel 1 port-channel 2<br />

R1<br />

Message 18 Shared LAG State Tracking Console Message<br />

2d1h45m: %RPM0-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Po 1<br />

2d1h45m: %RPM0-P:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Po 2<br />

CONFIG-PO-FAILOVER-GRP<br />

<strong>FTOS</strong> <strong>Configuration</strong> <strong>Guide</strong>, version 7.7.1.0 215<br />

Po 1<br />

Po 2<br />

R4<br />

R2 R3<br />

fnC0049mp

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