This MIB module provides network management 
support for QoS on wireless LAN devices. All 
objects defined in this MIB are listed (object 
names have been modified to adopt Cisco MIB object 
naming convention) in the IEEE 802.11E November 
2001 draft. The original names of the objects
in the standard are included in the REFERENCE
clauses. The standard is still under development. 
The standard IEEE 802.11E MIB can replace some of
the MIB objects in this MIB once the standard is 
finalized.


          GLOSSARY and ACRONYMS

Access point (AP)
    Transmitter/receiver (transceiver) device
    that commonly connects and transports data
    between a wireless network and a wired network.

AIFS 
    Arbitration Interframe Space. It is one of the 
    five different IFSs defined to provide priority 
    levels for access to the wireless media. It shall
    be used by QSTAs to transmit data type frames 
    (MPDUs) and management type frames (MMPDUs).

BSS
    IEEE 802.11 Basic Service Set (Radio Cell). The
    BSS of an AP comprises of the stations directly
    associating with the AP.

CW
    Contention Window. It is the time period between 
    radio signal collisions caused by simultaneous 
    broadcast from multiple wireless stations.
    The contention window is used to compute the 
    random backoff of the radio broadcast. The IEEE
    802.11b does not specify the unit for the time
    period.  

CWP Factor 
    Contention Window Persistence Factor. It indicates
    the factor used in computing new CW values on every
    15 unsuccessful attempt to transmit an MPDU or an 
    MMPDU of a traffic category. It is a scaling factor
    in units of 1/16 ths.

IFS 
    Inter-Frame Space is the time interval between 
    frames. A STA shall determine that the medium
    is idle through the use of the carrier sense 
    function for the interval specified. In other
    words, the size of the IFS determines the length
    of the backoff time interval of a device to the
    medium. In this case, the medium is the radio
    wave spectrum. The IEEE 802.11b standard does not
    specify any unit for the time interval.

BSS
    IEEE 802.11 Basic Service Set (Radio Cell). The
MAC
    Medium Access Control. Layer 2 in the network 
    model. 

MPDU
    MAC protocol data unit. The unit of data exchanged
    between two peer MAC entities using the services 
    of the physical layer (PHY).

MMPDU
    Management type MAC protocol data unit.

MSDU
    MAC service data unit. Information that is 
    delivered as a unit between MAC service access 
    points.

QBSS 
    Quality of service basic service set.

QSTA 
    QoS station.

STA (WSTA)
    A non-AP IEEE 802.11 wireless station.