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Problem with cisco switch after upgrading

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khashyar2021

khashyar2021

Technical User
Jan 1, 2021
1
IR
Last week I Upgraded all Cisco switches of my company and this caused the switches to stop working. This switches can't to find others in our network and I think the switch unable to do Broadcast and negotiate.
Please help me to find a way for solving this problem.
 
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