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Webcast-Catalyst9k
New Member

connecting down stream sw with port ch to 2 5548 running VPC

        I have 2 5548 runing vPC. I wan to connect another 5548 to those using a Port-channel. the 3 rd switch is for device with only 1 NIC and to keep having fanthom ports.

When I create another Port-channel on the 3rd sw and connect it an interface of the VPC  switches I always get a suspend interface due to SPanning tree.

how do you connect a downstream switch portchannel to a VPC paired switches?

2 REPLIES
New Member

Can you post the output of

Can you post the output of the 'sh vpc' command? Highlight the vPC you have setup for the new switch.  It would also help if you post the configuration of all the ports involved on all three switches.

New Member

sorry to not get back but it

sorry to not get back but it was a bad SFP

 

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