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Cisco Catalyst 2960 series Ports disabled when connecting vmware esx server

I have a Cisco Catalyst 2960 series switch.

When I connect another switch or a VMWare Esx server on one of the ports, the port blinks for few seconds and then goes off.

When I connect a desktop or laptop or a windows server the ports stay led and I can access resources on the network. However, when connect another switch or a vmware esx server, the port is disabled.

What config in the switch can I check to make sure the ports stay on regardless when I connect a desktop / laptop, switch or vmware server?

Thankyou for your help.

Regards

-Isaac Manu

2 REPLIES
Gold

Re: Cisco Catalyst 2960 series Ports disabled when connecting vm

hi,

could u post the show run | inc interface [number] ?

it could be a spanning tree setting, like bpdu guard on the interface.

plz Rate if it helped.

Soroush.

Hope it Helps!

Soroush.
Hall of Fame Super Gold

Cisco Catalyst 2960 series Ports disabled when connecting vmware

Hi Isaac,

Can you post the output to the following commands:

1.  sh interface ; and

2.  sh interface status err

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