How to detect vlan issues on switch ports connected to AP's
I have 600 AP's being controlled by a pair of Smartzone 100's. I do not have access to the switches. There are several SSID's being broadcast and each of them is associated with a different tagged vlan on the switched network. For example, each AP broadcasts the "Internet" SSID and connects clients on this SSID to VLAN 100 on the switch.
I discovered an access point that did not have VLAN 100 tagged on the switch port it was connected to (the port on the actual PoE switch did not have vlan 100 tagged on it).
Without having access to the switches, how can I tell if this is happening to other access points? In an Aruba network, if a tagged VLAN is missing off of the switchport that an AP is connected to, that AP will not broadcast the SSID that is supposed to connect to that VLAN. Presumably the AP can detect that there is not traffic on the tagged vlan for that SSID.
One of the answers is to tunnel all traffic back to the controller as this would eliminate the problem of missing tagged vlans on switches. But in this case the aggregate traffic on the SSID for all of the AP's would exceed the 1G port on the controller.
Does anybody know a way to detect VLAN issues using only the SZ controller or the AP's?