02-29-2012 09:16 AM - edited 07-03-2021 09:41 PM
Hello,
I have noticed on a few different occasions that the VLAN ID under VLAN mappings on our APs is changing for some reason when an AP loses connectivity to its primary controller and then reassociates. For instance, at one particular site we have several APs that have their native VLAN set to 97. Then under the VLAN mappings on the AP we have a VLAN 20 ID for our production wireless and a VLAN 998 ID for our guest wireless. When any of these APs lose connectivity to the controller and then reassociates the VLAN ID for guest changes to 99. But VLAN ID 20 does not change. 99 is the VLAN identifier for our controller management interface. All of these APs are running in HREAP local switching mode. Any insight on why the VLAN ID changes would be appreciated.
Thanks!
02-29-2012 09:19 AM
Jason,
Do the HREAP's have a secondary WLC that they could be joining? If so, make sure all the WLAN are in the same order on both WLC.
Steve
02-29-2012 09:24 AM
There is a secondary controller that they join during failures of the primary. On each controller under the the WLANs menu the WLANs ID for each SSID is identical.
02-29-2012 09:29 AM
There are a couple major differences for the primary and secondary controllers. First, the management VLAN identifier on the management interface is a different number on each of the controllers. The primary controller is 99 where as the secondary is 97. Second, the primary controller guest WLAN is using HREAP local switching. The secondary controller guest WLAN is using local mode.
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