I have 4 3750 all on remote sites with fiber connecting. Each site has a different ip ranges.
3750 1 172.10.x.x has asa5510 Head end
3750 2 172.11.x.x
3750 3 172.12.x.x
3750 4 172.13.x.x
All switches had same vlans on them
I was told cant do this due to the different subnets so I re did the vlans.
Making them all different including vlan 253 mgmt vlan.(not sure I was Suppose to do this)
When I physically connect all the switches back to switch 1 switch ones network goes crazy. Unplug everything is fine.
The end result is I need all switches to connect to switch 1. From there they will all receive there inet.
I am missing something simple I know any help would be much appreciated.