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Automatic backup link for trunk connection on 3560 switch

I have two switches connected together (trunk connection)over fiber optic link. I install a point to point radio for backup to the fiber optic link but when the fiber link goes down I have to shut the port down and unshut the radio point. Is there any way I can enable auto failover for the ports?

I have the ff config on my switch.

interface FastEthernet0/20

description Trunk Link Fiber Link

switchport trunk encapsulation dot1q

switchport mode trunk

!

interface FastEthernet0/24

description Trunk Link Radio_Link

switchport trunk encapsulation dot1q

switchport mode trunk

duplex full

speed 100

1 REPLY
Cisco Employee

Re: Automatic backup link for trunk connection on 3560 switch

This should work automatically.One of the link will be blocked by STP. Check the " show spanning-tree details" on both the switches.

-amit singh

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