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Network authentication issue

islamessami
Level 1
Level 1

I have authentication issue in my network, it contains from core sw, edge switches and cisco ISE with dynamic configuration managed by ISE host, the issue happened when we connected new cisco switch configured with vty wrong configuration, suddenly the network goes down and we observed that the core switches lost the vlans configuration, after reconfigured them on it and on all edge switches there is no one device able to authenticate and login using our dynamic configuration, to solve this, we have reconfigure the dynamic configuration to be static. 

I can't solve this issue  

1 Reply 1

new SW and VLAN remove do you check the VTP ?