Image Added In managed networks a LANCOM WLC centralally controls the client steering for all of the access points connected to it. In this case, client steering works as follows: 1.1) The LANCOM WLC collects the data about the associated WLAN clients from the APs connected to it. These data are the basis for the WLC to control the client steering. 1.2) All of the access points are configured so that the client steering is carried out via the LANCOM WLC (see the procedure in Section 2). 1.3) An unassociated WLAN client sends a probe request to the access points within its range. 1.4) Using CAPWAP, the access points transmit the request and the signal strength of the WLAN client to the LANCOM WLC. 1.5) For each access point within range of the LANCOM WLAN client, the WLC calculates a value from three factors:- A value for signal strength
- A value for the number of WLAN clients associated at the access point
- A value for the frequency band
The LANCOM WLC weights these factors and multiplies them together to derive the final value. 1.6) Access points with the highest value, or a value that deviates from it within a specified tolerance level, receive a message from the LANCOM WLC that they may accept the WLAN client at the next login attempt. 1.7) If the WLAN client attempts to connect to an access point before the LANCOM WLC has responded, then the access point ignores the client's connection request until the response from the WLC has arrived. Information: If Voice-over-IP applications operated via the WLAN experience problems, we recommend that you disable the client steering.
1.8) If a WLAN client is being "sticky", i.e. it does not attempt to connect to another access point offering a better connection quality, the WLC can trigger the current access point to log off the WLAN client. The WLAN client is then forced to connect with the access point offering the better connection. Information: If an access point loses connection to the WLC which is responsible for client steering, the access point accepts all connections from authenticated WLAN clients.
2) Procedure:
2.1) Open the configuration of the LANCOM WLC in LANconfig and navigate to the |