This MIB is intended to be implemented on all those
devices operating as Central controllers, that
terminate the Light Weight Access Point Protocol
tunnel from Cisco Light-weight LWAPP Access Points.

This MIB provides global configuration and status 
information for the controller. All general system 
related information is presented in this MIB.

The relationship between CC and the LWAPP APs
can be depicted as follows:

      +......+     +......+     +......+
      +      +     +      +     +      +
      +  CC  +     +  CC  +     +  CC  +
      +      +     +      +     +      +
      +......+     +......+     +......+
        ..            .             .
        ..            .             .
       .  .            .             .
      .    .            .             .
     .      .            .             .
    .        .            .             .
+......+ +......+     +......+      +......+
+      + +      +     +      +      +      +
+  AP  + +  AP  +     +  AP  +      +  AP  +
+      + +      +     +      +      +      +
+......+ +......+     +......+      +......+
           .              .             .
         .  .              .             .
        .    .              .             .
       .      .              .             .
      .        .              .             .
   +......+ +......+     +......+      +......+
   +      + +      +     +      +      +      +
   +  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 them to the controller to which
it is logically connected.

Light Weight Access Point Protocol ( LWAPP )

This is a generic protocol that defines the 
communication between the Access Points and the
Central 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. 

Extensible Authentication Protocol ( EAP )

EAP is a universal authentication protocol used in
wireless and PPP networks. It is defined by RFC 3748.

EAP-Flexible Authentication ( EAP-FAST )

This protocol is used via secure tunneling for 802.1X EAP.

PAC

PAC (Protected Access Credential) is a meachanism for 
mutual authentication in EAP-FAST.

PEAP

The Protected Extensible Authentication Protocol, also known 
as Protected EAP or simply PEAP, is a protocol that 
encapsulates EAP within a potentially encrypted and 
authenticated Transport Layer Security (TLS) tunnel.The 
purpose was to correct deficiencies in EAP; 
EAP assumed a protected communication channel, such as that 
provided by physical security, so facilities for protection 
of the EAP conversation were not provided.

EAP-SIM

EAP for GSM Subscriber Identity Module (EAP-SIM) is used 
for authentication and session key distribution using the 
Subscriber Identity Module (SIM) from the Global System 
for Mobile Communications (GSM).

RAID

Redudant array of independant disks (RAID) combines multiple
disk drive components into logical unit for the purposes of
data redundancy and performance improvements.
     

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.

[3] IEEE 802.1X - Authentication for Wireless and 
    Wired Connections.