Белая книга для Cisco Cisco 2000 Series Wireless LAN Controller

The LWAPP config requests and responses are exchanged between the Access Points and the controllers in
order to create, change (update) or delete the services offered by an AP.

In general, a Configure Request message is sent by an AP to send its current configuration to its WLC.

The config request can be sent in two scenarios:

In the initial phase when the AP joins a controller and needs to be provisioned with all 802.11 settings
that are configured on the controller.

1. 

In the case of on−demand administrative changes, such as a change to a WLAN parameter

2. 

The LWAPP config response message type is sent by the WLC to the AP in order to acknowledge the receipt
of the LWAPP config request from the AP. This provides an opportunity for the WLC to override the AP's
requested configuration. There are no special message elements contained by such a frame.

The initial exchange between the AP and the WLC (ap−manager interface) is approximately 6,000 bytes and a
one−time configuration change averages 360 bytes and involves 2 packets each from the AP and the
ap−manager interface of the WLC.