Cisco Cisco Nexus 5010 Switch Guia Do Desenho

 

 

Design Guide 

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SVI VLAN50 (vPC-VLAN) is shut down on the operational secondary device to prevent traffic from the core 

routers from reaching the vPC secondary device on which the vPC ports are shut down 

Figure 20.    Peer-Link Failure 

 

As a result of the peer-link failure, all traffic in Figure 20 takes the path on the left through the vPC primary device. 

This is true both for the client-to-server traffic and the server-to-client traffic. 

The following show command entered on the secondary vPC peer illustrates the results of the vPC peer-link failure: 

tc-nexus7k02-vdc2# show vpc br 

 

vPC domain id                   : 1    

Peer status                     : peer link is down              

vPC keep-alive status           : peer is alive                  

vPC role                        : secondary