CISCO-DOT11-ANTENNA-MIB
File:
CISCO-DOT11-ANTENNA-MIB.mib (11380 bytes)
Imported modules
Imported symbols
Defined Types
| CDot11AntennaEntry |
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| SEQUENCE |
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cDot11AntennaIsGainConfigured |
TruthValue |
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cDot11AntennaResultantGain |
Integer32 |
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Defined Values
| ciscoDot11AntennaMIB |
1.3.6.1.4.1.9.9.384 |
| This MIB is intended to be implemented on 802.11
Access Points and Wireless Bridges to provide
information about the antennas connected to their
802.11 interfaces. The NMS retrieves the configured
antenna parameters and uses it to calculate the
recommended radio settings to be applied to the Access
Points being managed to achieve optimum coverage and
throughput.
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.
Wireless Bridge
An 802.11 entity that provides wireless connectivity
between two wired LAN segments and is used in point-
to-point or point-multipoint configurations.
Repeater-AP
A repeater is a 'wireless AP' that is attached to a
parent AP on an 802.11 primary port. The Ethernet
port is disabled in a Repeater-AP.
Antenna
A passive device connected to the 802.11 interface
that is used for transmission and reception of the
radio signals. Antennas transmit radio signals
in all directions (omnidirectional) or in a
particular direction(directional, high-gain).
Antenna Gain
The Antenna Gain is the measure of the amount of
amplification done on the input radio signal by
the antenna. Amplification is done by virtue of
focussing the RF radiation into a tighter beam.
Antenna Gain is expressed as dBi units.
Attenuator
An attenuator circuit allows a known source of power
to be reduced by a predetermined factor usually
expressed as decibels. This power reduction is
achieved by the attenuator without introducing
distortion. An attenuator may be used in either
audio or radio signal circuits. |
| MODULE-IDENTITY |
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| cDot11AntennaTable |
1.3.6.1.4.1.9.9.384.1.1.1 |
| This table holds the specification of the antenna
connected to the 802.11 interfaces of an
infrastructure device like an AP or Bridge.
The table gets populated when the administrator
configures the 802.11 interface with information
about the antenna connected to it.
This table has a sparse dependent relationship
with ifTable defined in IF-MIB. There exists an
entry in this table corresponding to the entry for
each dot11 interface found in ifTable. This table is
not applicable to virtual dot11 interfaces. |
| Status: current |
Access: not-accessible |
| OBJECT-TYPE |
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SEQUENCE OF |
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CDot11AntennaEntry |
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| cDot11AntennaEntry |
1.3.6.1.4.1.9.9.384.1.1.1.1 |
| An entry corresponds to the set of operational
parameters of the antenna connected to the
802.11 interface identified by ifIndex. |
| Status: current |
Access: not-accessible |
| OBJECT-TYPE |
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CDot11AntennaEntry |
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| cDot11AntennaResultantGain |
1.3.6.1.4.1.9.9.384.1.1.1.1.2 |
| This object, expressed in dB, is used to
calculate the appropriate radio settings for the
wireless infrastructure devices being managed.
The semantics are as follows.
For a dot11 interface without an external antenna
and an attenuator connected to it, the value of
this object is the default gain corresponding to the
PHY type of that respective interface.
If the particular dot11 interface is connected to an
external antenna in the presence of an attenuator,
this object holds the value that is the resultant of
the gain of the antenna as specified by the antenna's
hardware specification and the attenuation introduced
by the attenuator, as configured by the administrator.
In the absence of an attenuator, the value held by
this object is the exact value of the gain of the
external antenna configured by the administrator as
specified by the antenna's hardware specification,
if an external antenna is connected to the 802.11
interface.
In the absence of an external antenna, if the
attenuator is present, the value of this object is
is the amount of attenuation that is intended to be
introduced to control the output power, as
configured by the administrator.
The value of this object is reverted back by the
agent to the default gain corresponding to the PHY
type of the particular 802.11 interface, when both
the external antenna and the attenuator are
physically disconnected from the particular interface
and the gain configured earlier is cleared by the
administrator. |
| Status: current |
Access: read-only |
| OBJECT-TYPE |
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Integer32 |
-128..128 |
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| cDot11AntennaMIBCompliance |
1.3.6.1.4.1.9.9.384.2.1.1 |
| The compliance statement for the SNMP entities that
implement the ciscoDot11AntennaMIB module. |
| Status: current |
Access: read-only |
| MODULE-COMPLIANCE |
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| cDot11AntennaGlobalGroup |
1.3.6.1.4.1.9.9.384.2.2.1 |
| This collection of objects provide information about
the antenna connected to the 802.11 interfaces of a
WLAN infrastructure device like an Access Point or
a Bridge. |
| Status: current |
Access: read-only |
| OBJECT-GROUP |
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