Day 1, network is fine. I go home for the day. About 9:00 pm, I get alerts of overheating and we shutdown.
Day 2, AC is repaired, bring network back up. There are 3 networks that are not quite working right. vlan 201 is a /22 network. Vlan 901 is a /26 and vlan 904 is a /26. hosts from vlan 201 and 904 cannot communicate with certain hosts in vlan 901. There are no firewalls or ACL's blocking any traffic between these 3 vlans. At first I though it was the hosts themselves, but now I am not so sure. Each vlan has an SVI. I can ping the svi IP address and IP's in the vlan, but I cannot ping certain hosts, unfortunately one of them is my ACS server. So AAA devices in these vlans are not getting TACACS services but other networks are fine.
Any ideas on how to troubleshoot this?