This is the MIB Module for the Cisco Wireless Radio
Point to Point interface specification.
        
I) Relationship of the Cisco Wireless Radio IF MIB to Interfaces MIB:
        
One instance of the ifEntry exists for each wireless interface.
The ifType of each such interface will be propWirelessP2P(157).
        
If (at least) one IP address is active on an interface with this
ifType without the use of any intervening (multiplexing) sub-layer,
then it will appear in exactly two ifStackTable entries: i.e.,
for an ifType=propWirelessP2P(157) interface with ifIndex 'x', the
ifStackTable will contain:
        
ifStackStatus.0.x=active
ifStackStatus.x.0=active
        
The ifTestTable and ifRcvAddressTable are  not supported by this ifType.
        
II) ifEntry for the Wireless MAC Layer:
        
The ifEntry for the wireless MAC Layer supports the following groups in
the Interfaces MIB :
a. ifGeneralInformationGroup
b. ifHCPacketGroup
        
For all those objects where the behavior is as defined in the Interfaces
MIB, refer to Interfaces MIB for description.
Special conditions or exceptions are explicitly documented here.
        
IfTable Attribute        Comments
=================        ===============================================
        
        
ifType,                 The IANA value of propWirelessP2P(157).
        
ifMtu,                  Return 1500.
        
ifSpeed,                Current configured bandwidth.  It can be
                1.5Mbits/sec to 12Mbits/sec.
        
ifPhysAddress,          Return 0 length octet string.
        
ifAdminStatus,          The administrative status of this interface.
        
ifOperStatus,           The current operational status of the 
                wireless MAC layer interface.
        
ifLastChange,           Refer to the Interfaces MIB.
        
ifInMulticastPkts,      Returns 0.
        
ifInBroadcastPkts,      Returns 0.
        
ifOutMulticastPkts,     Returns 0.
        
ifOutBroadcastPkts,     Returns 0.
        
ifHCInMulticastPkts,    Not supported.
        
ifHCInBroadcastPkts,    Not supported.
        
ifHCOutMulticastPkts,   Not supported.
        
ifHCOutBroadcastPkts,   Not supported.
        
Glossary
        
The following terms are used in the MIB definitions below.
        
Radio Interface: The interface that provides the wireless 
         communication features.
Radio Link:      The bi-directional wireless link that exists between two
         communicating radio.
Radio PHY:       Represents the transmission characteristics of the Radio
         Link.
RF Unit:         The Radio Frequency components and the associated 
         antennas.
ARQ:             Automatic Repeat Query.
        
        
Cisco Wireless MIB Organization
        
The Cisco Wireless Radio IF MIB provides the following management groups :
        
o.  Radio Base Group
This group contains common information about a radio
interface . It provides facilities to configure
attributes such as self-test, acquisition mode, etc.
It includes configuration information used to set up
a radio link.
        
o.  Radio PHY Quality Group
This group provides facilities to control/tune the
transmission and reception quality of the Radio Link.
The quality of the Radio Link is measured using the
metrics defined in radio Radio Link metrics group.
        
o.  Radio Frequency Resource Group
This contains information about the Radio frequency
transmission and reception resources available on the
system. This group determines the portions of the
radio spectrum at which the radio subsystem can
operate.
This group in conjunction with the radio PHY group
determine the acutal spectrum that gets used for
communications.
        
        
o.  Radio Link Metrics Group
This group contains metrics to measure the quality of
radio Link. This includes metrics such as total
received codeword errors, resync count, errored
seconds etc.
        
o.  Radio Signal Group
This group contains information about the radio
signal(s) that were received or attributes of the radio
signals computed from received signals.
This group models the real-time data that is collected.
        
The key characteristics are:
1. The amount of information captured in these parameters
is large and cannot be modeled as single values.
        
2. They represent real-time information, which cannot be
polled for as well.
        
3. Hardware captures this information.
        
All the radio signal characteristics are modeled in
three ways:
1. Histogram
2. Timelines
3. Snapshots
        
For management purposes radio signal characteristics
are made accessible via:
1. History Group
2. Timeline Group
3. Snapshot Group
These groups are described below.
        
o.  History Group
This group contains information about the radio system
characteristics which are inherently modeled as
historgrams.
Certain characteristics of the radio system may be
captured as histograms by the hardware.
The user may configure these histograms as needed.
        
It exists for the following reasons:
        
1. The amount of information contained in these
parameters is large and cannot be modeled as single
values.
        
2. They represent real-time information, which cannot be
polled for as well.
        
3. Key signal processing information cannot be captured
by normal SNMP (say 1 sec poll interval) monitoring.
        
4. Hardware captures this information as histograms.
        
5. In wireless environments this is key information that
can be captured for fault and performance management.
        
o.  Timeline Group
This group contains information about how raw radio
signal characteristics that may be captured.
Timelines are normally associated with a threshold
defined in the threshold group.
        
o.  Threshold Group    
This provides provides facilities to define thresholds
on the raw signal attributes that are processed by the
hardware. Normally thresholds are used in conjunction
with Timelines to capture specific radio signal
behavior.
        
o.  Snapshot Group   
This group provides facilities that may be
used to capture multiple radio signal attributes
keyed to a single user initiated trigger. Simultaneous
capture of multiple real-time attributes keyed to
a single trigger provides indepth information about
the behavior of the system.
        
o.  Test Group    
This provides facilities to establish loopback at
various points in the hardware for diagnostic
purposes.
        
o.  Antenna Group    
This group provides information about the antenna
resources installed and available for use.
        
o.  Trap Group    
It provides the list of traps that the wireless system
will generate.