This MIB is intended to be implemented on all those devices operating as Central Controllers (CC) that terminate the Light Weight Access Point Protocol (LWAPP) tunnel from Light-weight Access Points. This MIB represents information about the status of the Multipurpose Power Supply (MPS), used as backup power supply for an Access Point (AP) in the Wireless Mesh Network. The MPS reports status information to the AP periodically. The AP inturn reports the battery status information to the controller periodically as a part of the LWAPP information packet. General Infomation about Cisco Wireless Mesh network: A Mesh AP (MAP) can associate directly with another Root AP (RAP) or with another MAP AP. Each association of AP (MAP-MAP or RAP-MAP) with another AP forms parent-child relationship. The arrangement of the controller (referred to as CC in the diagram) and mesh nodes (RAP and MAP) LWAPP APs ,client(MN) and NMS appear as follows. +.......+ +.......+ + + + + + NMS + + NMS + + + + + +.......+ +.......+ . . . . . . . . . . . . . . +......+ +......+ +......+ +......+ + + + + + + + + + CC + + CC + + CC + + CC + + + + + + + + + +......+ +......+ +......+ +......+ .. . . . .. . . . . . . . . . . . . . . . . . . . . . . . +......+ +......+ +......+ +......+ +......+ + + + + + + + + + + + RAP + + RAP + + RAP + + RAP + + RAP + + + + + + + + + + + +......+ +......+ +......+ +......+ +......+ . . . . . . . . . . . . . . . . . . . . . . . . . +......+ +......+ +......+ +......+ +......+ + + + + + + + + + + + MAP + + MN + + MAP + + MAP + + MAP + + + + + + + + + + + +......+ +......+ +......+ +......+ +......+ . . .. . . . . .. . . . . .. . . . . . . +......+ +......+ +......+ +......+. +......+ + + + + + + + + + + + MAP + + MAP + + MAP + + MAP + + 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 through the tunnel. 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 them to the controller to which it is logically connected. Central Controller (CC) The central entity that terminates the LWAPP protocol tunnel from the LWAPP APs. Throughout this MIB, this entity is also referred to as 'controller'. Mobile Node (MN) A roaming 802.11 wireless device in a wireless network associated with an access point. Mobile Node and client are used interchangeably. Network Management System (NMS) The station from which the administrator manages the wired and wireless networks. Mesh Network A network of APs where the AP are linked to each other through wireless links. These wireless links are also called backhaul links. At least one of these APs must be connected to a controller through a wired link. Mesh Node A mesh node is defined as a physical or logical entity in the mesh network participating in forming the mesh backhaul. There are two types of mesh nodes supported in Cisco mesh network - RAP and MAP. Root AP (RAP) The AP forming the bridge between a wired and a mesh network with an Ethernet interface to the wired network and a 802.11 radio interface to the mesh network. Mesh AP (MAP). The AP extending wireless coverage similar to a repeater in a mesh network and consists of a 802.11 uplink and a 802.11 downlink. On a single-radio backhaul, both uplink and downlink exist on the same radio and are logical links only. On a multi-radio backhaul, they may exist on different radios. REFERENCE [1] Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. [2] Draft-obara-capwap-lwapp-00.txt, IETF Light Weight Access Point Protocol.