CISCO-LWAPP-CDP-MIB
This MIB is intended to be implemented on all those devices operating as Central Controllers (CC) that terminate the Light Weight Access Point Protocol tunnel from Light-weight LWAPP Access Points. This MIB provides configuration and status information about CDP neighbors of LWAPP APs. The MIB provides configuration of CDP feature on the LWAPP Access Points. The MIB can also be used to retrive the status of the CDP cache information on the various LWAPP LWAPP Access Points. The CDP MIB is also supported by Controller and provides configuration and status information about CDP neighbours of the controller. The relationship between CC and the LWAPP APs can be depicted as follows: +......+ +......+ +......+ +......+ + + + + + + + + + CC + + CC + + CC + + CC + + + + + + + + + +......+ +......+ +......+ +......+ .. . . . .. . . . . . . . . . . . . . . . . . . . . . . . +......+ +......+ +......+ +......+ +......+ + + + + + + + + + + + AP + + AP + + AP + + AP + + AP + + + + + + + + + + + +......+ +......+ +......+ +......+ +......+ . . . . . . . . . . . . . . . . . . . . . . . . +......+ +......+ +......+ +......+ +......+ + + + + + + + + + + + MN + + MN + + MN + + MN + + MN + + + + + + + + + + + +......+ +......+ +......+ +......+ +......+ The LWAPP tunnel exists between the controller and the APs. The MNs communicate with the APs through the protocol defined by the 802.11 standard. LWAPP APs, upon bootup, discover and join one of the controllers and the controller pushes the configuration, that includes the WLAN parameters, to the LWAPP APs. The APs then encapsulate all the 802.11 frames from wireless clients inside LWAPP frames and forward the LWAPP frames to the controller. GLOSSARY Access Point ( AP ) An entity that contains an 802.11 medium access control ( MAC ) and physical layer ( PHY ) interface and provides access to the distribution services via the wireless medium for associated clients. LWAPP APs encapsulate all the 802.11 frames in LWAPP frames and sends it to the controller to which it is logically connected. Basic Service Set Identifier (BSSID) The identifier for the service set comprising of all the 802.11 stations under the control of one coordinating Access Point. This identifier happens to be the MAC address of the dot11 radio interface of the Access Point. The wireless clients that associate with the Access Point get the wired uplink through this particular dot11 interface. Central Controller ( CC ) The central entity that terminates the LWAPP protocol tunnel from the LWAPP APs. Throughout this MIB, this entity also referred to as 'controller'. Light Weight Access Point Protocol ( LWAPP ) This is a generic protocol that defines the communication between the Access Points and the Central Controller. Cisco Discovery Protocol ( CDP ) Protocol for discovery of neighboring devices. REFERENCE [1] Part 11 Wireless LAN Medium Access Control ( MAC ) and Physical Layer ( PHY ) Specifications. [2] Draft-obara-capwap-lwapp-00.txt, IETF Light Weight Access Point Protocol.