5/26/05 Converting a Cisco WLAN Solution from Layer 3 to Layer 2 Mode
OL-7426-03
Converting a Cisco WLAN Solution from Layer 3 to Layer 2 ModeConverting a Cisco WLAN Solution from Layer 3 to Layer 2 Mode
When you wish to convert Cisco WLAN Solution from Layer 3 to Layer2 Mode, perform one of the
following tasks:
•Using the Web User Interface
•Using the Cisco WCS User Interface
Using the Web User InterfaceUsing the Web User Interface
When you wish to convert a Cisco WLAN Solution from Layer 3 to Layer2 LWA PP Transport Mode using
the Web User Interface, complete the following steps:
1. MAKE SURE that all the Cisco Wireless LAN Controllers and Cisco 1000 Series lightweight access
points are on the same subnet: that they are only connected through Layer 2 devices.
2. In the Web User Interface, select CONTROLLER/General to navigate to the General page,
and change Layer 3 LWAPP Transport Mode to Layer2. Then click Apply to send the changes
to the Cisco Wireless LAN Controller. Click OK to continue.
3. Select COMMANDS/Reboot to navigate to the System Reboot page, and select Reboot. On
the Reboot System > Save page, click Save and Reboot to save the changes to and to
reboot the Cisco Wireless LAN Controller. Then click OK to confirm the save and reboot.
4. After the Cisco Wireless LAN Controller has rebooted, select CONTROLLER/General to
navigate to the General page, and verify that the current LWAPP Transport Mode is set to
Layer 2.
5. Also select CONTROLLER/Interfaces to navigate to the Interfaces page, and verify that the
ap-manager interface is removed from the list of Interface Names.
You have completed the LWAPP Transport Mode conversion from Layer 3 to Layer2. The Operating
System software now controls all communications between Cisco Wireless LAN Controllers and Cisco
1000 Series lightweight access points on the same subnet. Continue with the Product Guide.
CAUTION: This procedure will cause your Cisco 1000 Series lightweight access
points to go offline until the Cisco Wireless LAN Controller reboots and the associated
Cisco 1000 Series lightweight access points reassociate with the Cisco Wireless LAN
Controller.
CAUTION: This step is very im portant! If you change the Ci sco WLAN Solution From
Layer 3 to Layer 2 while the Cisco Wireless LA N Controllers and Cisco 1000 Series
lightweight access points are on different subnets, they will be UNABLE TO COMMU-
NICATE with each other after the conversion to Layer 2 mode.