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 the 802.11 Access Points that have joined 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.
        
        
Bluetooth Low Energy  (BLE)
        
Bluetooth Low Energy is a light-weight subset of classic
bluetooth which is added in Hyper Action Location (HALO) 
enabled APs to make use of BLE beacons to communicate 
with wireless clients at short range.
        
        
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'. 
        
Hyper Action Location (HALO)
        
 This is an external module for Cisco Access Points,
which is responsible for high accuracy indoor 
location. It includes smart antenna and new software
interfaces to enable high accuracy indoor location.        
        
iBeacon
        
This is a low-cost transmitter which can transmit 
its own unique identification number to the local 
area.        
        
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. 
        
Station Management (SMT)
        
This term refers to the internal management of the
802.11 protocol operations by the AP to work
cooperatively with the other APs and 802.11
devices in the network.
        
Link Latency 
        
Latency is round trip time between AP and controller.
There is a continuous heart-beat between AP and 
controller. AP calculates latency for each time and 
sends to controller.
        
AMSDU
        
Aggregate MAC Service Data Unit. A structure containing 
multiple MSDUs, transported within a single (unfragmented)  
or multiple (fragmented) Data MPDU. 
        
DTLS
        
Datagram Transport Layer Security (DTLS) protocol provides 
communications privacy for datagram protocols. The protocol 
allows client/server applications to communicate in a way 
that is designed to prevent eavesdropping, tampering, or 
message forgery. 
        
WIPS
        
Wireless Intrusion Prevention System (WIPS) is a network device 
that monitors the radio spectrum for the presence of 
unauthorized access points (intrusion detection), and can 
automatically take countermeasures (intrusion prevention).
        
SE
        
Spectrum Expert is an application software, which when 
connected to Spectrum Intelligent Access Point, provides 
detailed RF spectrum plots and data, and assist in diagnosing 
network problems. 
        
PPPOE
        
Point-to-Point Protocol Over Ethernet provides a standard 
method to build sessions for transporting multi-protocol 
datagrams between point-to-point links over Ethernet.
        
OEAP
        
Office Extended Access Point provides a method to extend their 
office network to outside the office premises like the employee 
homes, thereby providing a seamless experience to the employee 
irrespective of the location of the work. This solution should 
also support having private SSID whose data need to be switched 
at the AP itself.
        
EWC 
        
Embedded Wireless Controller on AP wireless network solution comprises of at
least one 802.11ac Wave 2 Cisco Aironet Series access point 
(AP) with an in-built software-based wireless controller (WLC)
managing other APs in the network. The AP acting as the WLC is
referred to as the master AP while the other APs in the Cisco 
Embedded Wireless Controller network, which are managed by this master AP,
are referred to as subordinate APs. In addition to acting as a
WLC, the master AP also operates as an AP to serve clients along
with the subordinate APs.
        
FIPS
        
Federal Information Processing Standards are a set of standards
that describe document processing, encryption algorithms and
other information technology standards for use within
non-military government agencies and by government contractors
and vendors who work with the agencies.
        
LAG
        
Link aggregation (LAG) is a partial implementation of the
802.3ad port aggregation standard. It bundles all of the
controller's distribution system ports into a single 802.3ad
port channel. This reduces the number of IP addresses required
to configure the ports on your controller. When LAG is enabled,
the system dynamically manages port redundancy and load
balances access points transparently to the user.
        
CAPWAP
        
The Control And Provisioning of Wireless Access Points (CAPWAP) 
protocol is a standard, interoperable networking protocol that 
enables a central wireless LAN Access Controller (AC) to manage 
a collection of Wireless Termination Points (WTPs),
more commonly known as Wireless Access Points.
        
Flexible Radio Assignment
        
The Flexible Radio Assignment feature allows either manual
configuration of capable APs or for these APs to intelligently
determine the operating role of the integrated radios based on
the available RF environment. APs with flexible radio can
automatically detect when a high number of devices are connected
to a network and changes the dual radios in the access point
from 2.4 GHz/5 GHz to 5 GHz/5 GHz to serve more clients.
The AP performs this task while monitoring the network for
security threats and RF Interference that may affect
performance. Flexible Radio Assignment improves mobile user
experience for high-density networks.
        
XOR Radio
        
XOR radio is a radio that can operate on both 2.4Ghz and 5Ghz
bandwidth.
        
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.