Chapter 7 Controlling Lightweight Access Points
Access Point Communication Protocols
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with one discovery type (CAPWAP or LWAPP) exceeds the maximum discovery count and the access point does not receive a discovery response, the discovery type changes to the other type. For example, if the access point does not discover the controller in LWAPP, it starts the discovery process in CAPWAP.
If an access point is in the UP state and its IP address changes, the access point tears down the existing CAPWAP tunnel and rejoins the controller. In previous software releases, the access point notifies the controller, and the session continues with the changed IP address without tearing down the session.
You must install software release 4.0.155.0 or later on the controller before connecting 1100 and 1300 series access points to the controller. The 1120 and 1310 access points were not supported prior to software release 4.0.155.0.
The Cisco controllers cannot edit or query any access point information using the CLI if the name of the access point contains a space.
Make sure that the controller is set to the current time. If the controller is set to a time that has already occurred, the access point might not join the controller because its certificate may not be valid for that time.
Access points must be discovered by a controller before they can become an active part of the network. The lightweight access points support these controller discovery processes:
•Layer 3 CAPWAP or LWAPP
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Note You can find additional information about OTAP at this link: http://www.ciscosystems.com/en/US/products/ps6366/products_tech_note09186a008093d 74a.shtml
•Locally stored controller IP address
•DHCP server
•DNS
Cisco Wireless LAN Controller Configuration Guide
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