Specifications

4-61
Cisco Wireless LAN Controller Configuration Guide
OL-21524-02
Chapter 4 Configuring Controller Settings
Configuring Client Roaming
Note To see whether a particular client supports E2E, choose Wireless > Clients on the controller
GUI, click the Detail link for the desired client, and look at the E2E Version text box under
Client Properties.
• Roam reason report—This feature enables CCXv4 clients to report the reason why they roamed to
a new access point. It also allows network administrators to build and monitor a roam history.
• Directed roam request—This feature enables the controller to send directed roam requests to the
client in situations when the controller can better service the client on an access point different from
the one to which it is associated. In this case, the controller sends the client a list of the best access
points that it can join. The client can either honor or ignore the directed roam request. Non-CCX
clients and clients running CCXv3 or below must not take any action. No configuration is required
for this feature.
Controller software release 4.2 or later releases support CCX versions 1 through 5. CCX support is
enabled automatically for every WLAN on the controller and cannot be disabled. The controller stores
the CCX version of the client in its client database and uses it to generate and respond to CCX frames
appropriately. Clients must support CCXv4 or v5 (or CCXv2 for access point assisted roaming) in order
to utilize these roaming enhancements. See the “Configuring Cisco Client Extensions” section on
page 7-52 for more information on CCX.
The roaming enhancements mentioned above are enabled automatically, with the appropriate CCX
support.
Note Hybrid-REAP access points in standalone mode do not support CCX Layer 2 roaming.
Note Client roaming between 600 Series Access points is not supported.
Using the GUI to Configure CCX Client Roaming Parameters
To configure CCX client roaming parameters using the controller GUI, follow these steps:
Step 1 Choose Wireless > 802.11a/n (or 802.11b/g/n) > Client Roaming. The 802.11a (or 802.11b) > Client
Roaming page appears (see Figure 4-25).