Our School District has 25 buildings and each have it's own vlan assigned to it. Recently one of our building vlans, 111, just stopped communicating with another, 157, but does communicate with the remaining 23 vlans. Vlan 157 is not able to communicate with vlan 111 but can communicate with the other 23 vlans.
We have a 6509 sup720 running CatOS with 3500 series edge switches.
Any suggestions on where to start looking would be greatly appreciated.
WWCSD Tech Group