| cDot11RadioDiagTempChannel |
.1.3.6.1.4.1.9.10.105.1.1.1.1.1 |
|
Temporary channel number for the 802.11 interface
identified by ifIndex.
The value this object takes depends on the value of
the object dot11PHYType defined in
IEEE802dot11-MIB.
The semantics are as follows.
If dot11PHYType equals 'ofdm', the acceptable values
for this object are 34, 36, 38, 40, 42, 44, 46, 48,
52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124,
128, 132, 136, 140, 149, 153, 157 and 161.
If dot11PHYType equals 'dsss' or 'erp', the
acceptable values for this object are from 1 to 14.
The channel numbers that can be assigned to this
object from the set of acceptable values mentioned
above vary depending on the value of the MIB object
cd11IfCurrentCarrierSet defined in CISCO-DOT11-IF
MIB.
The object cDot11RadioDiagSettingsEnabled must be set
to 'true' to apply the temporary value specified
through this object to the 802.11 interface.
Setting cDot11RadioDiagSettingsEnabled to 'false'
temporary value to that interface restores
the channel setting of this interface to the original
value that was there before applying the temporary
value to that interface. A value of 0 indicates that
this object hasn't been configured with a valid
channel number.
|
| cDot11RadioDiagTempTxPowerLevel |
.1.3.6.1.4.1.9.10.105.1.1.1.1.2 |
|
Temporary transmit power level for the 802.11
interface identified by ifIndex.
A value in the range of 1 to 8 refers to one of the
power levels from the MIB table 'dot11PhyTxPowerTable'
in IEEE802dot11-MIB. The power levels that can be
assigned to this object from the set of acceptable
values mentioned above vary depending on the value of
the MIB object cd11IfCurrentCarrierSet defined in
CISCO-DOT11-IF-MIB.
The object cDot11RadioDiagSettingsEnabled must be set
to 'true' to apply the temporary value specified
through this object to the 802.11 interface. Setting
cDot11RadioDiagSettingsEnabled to 'false' restores
the power setting of this interface to the original
value that was there before applying the temporary
value to that interface. A value of 0 indicates that
this object hasn't been configured with a valid
power level.
|
| cDot11RadioDiagMode |
.1.3.6.1.4.1.9.10.105.1.1.1.1.3 |
|
Test mode as carried by the Cisco Radio Management
Extensions in the 802.11 beacon frame.
The semantics are described as follows.
normal - Indicates that the station is operating in
non-test mode.
apRadioDiscovery - Indicates that this station is
operating in AP Discovery mode. In this mode, APs
transmit and measure each other's beacons. APs
measure signal strength as received from other APs,
levels of RF interference experienced during
transmission / reception and report back the same to
the NM.
siteSurveyTempSettings - Indicates that
the station is operating in AP assisted site survey
mode with temporary channel and transmit power
settings applied to the dot11 interface identified
by ifIndex.
siteSurveyNonTempSettings - Indicates
that station is operating in AP assisted site survey
mode with it's original channel and transmit power
with the temporary settings not applied to the dot11
interface identified by ifIndex.
|
| cDot11RadioDiagSettingsEnabled |
.1.3.6.1.4.1.9.10.105.1.1.1.1.4 |
|
A flag to indicate whether the station will apply
the temporary channel, transmit power settings and
the data rate sets configured in this entry to the
particular dot11 interface and the client transmit
power setting to the clients associated with this
station through that dot11 interface.
A value of 'true' indicates that the station will
apply the temporary channel, transmit power settings
and the data rate sets configured in this entry to
the dot11 interface and the client transmit power
to the respective associated clients.
A value of 'false' indicates that station will use
it's original channel, transmit power and data rate
sets for data communication over the respective dot11
interface. Also, the station will revert back the
transmit power of the clients associated through the
particular dot11 interface to their original transmit
power levels.
|
| cDot11RadioDiagTempClientTxPower |
.1.3.6.1.4.1.9.10.105.1.1.1.1.5 |
|
Temporary transmit power level for the 802.11
clients associated with this station through the
802.11 interface identified by ifIndex.
The value configured through this object is carried
by the beacon frames transmitted by this 802.11
station and picked up by the associated clients, if
any, from these beacon frames to set their respective
transmit power levels.
A value in the range of 1 to 8 refers to one of the
recommended power levels from the table
cd11IfClientTxPowerTable defined in
CISCO-DOT11-IF-MIB. The power levels that can be
assigned to this object from the set of acceptable
values mentioned above vary depending on the value of
the MIB object cd11IfCurrentCarrierSet defined in
CISCO-DOT11-IF-MIB.
The object cDot11RadioDiagSettingsEnabled must be set
to 'true' to apply the temporary value specified
through this object to the respective clients.
Setting cDot11RadioDiagSettingsEnabled to 'false'
restores the transmit power setting of the associated
clients to the original value that was there before
applying this temporary value to those clients. A
value of 0 indicates that this object hasn't been
configured with a valid power level.
|
| cDot11RadioDiagTempDataRateSet |
.1.3.6.1.4.1.9.10.105.1.1.1.1.6 |
|
This object specifies the set of data rates at which
the station may transmit data through the dot11
interface identified by ifIndex. The semantics of
this object are similar to that of the object
dot11OperationalRateSet of IEEE802dot11-MIB.
Each octet contains a value representing a rate.
Each rate shall be within the range from 2 to 127,
corresponding to data rates in increments of
500 kb/s from 1 Mb/s to 63.5 Mb/s, and shall be
supported as indicated in the object
dot11SupportedDataRatesTxTable of IEEE802dot11-MIB
for receiving data.
The object cDot11RadioDiagSettingsEnabled must be set
to 'true' to apply the temporary value specified
through this object to the 802.11 interface.
Setting cDot11RadioDiagSettingsEnabled to 'false'
restores the data rate setting of this interface to
the original value that was there before applying
the temporary value to that interface. A query to
this object returns a value of zero for each octet
of the octet string representing this object, if
this object hasn't been configured with a
valid data rate set.
|
| ciscoDot11RadioDiagMIB |
.1.3.6.1.4.1.9.10.105 |
|
This MIB is intended to be implemented on all
802.11 based Access Points and Wireless Bridges
that need to participate in radio environment
diagnosis. The devices mentioned above may house
any one of the 802.11a/802.11b/802.11g standard-
based radio interfaces in them for data
communication in the form of radio waves. The
administrator, through the NMS, temporarily alters
the power and channel configurations of an 802.11
radio interface and the transmits power levels of
the associated clients, if any, by setting
appropriate values to the objects of this MIB to
perform activities like discovering neighboring APs,
measuring strength of the signals as received from
other APs, studying RF interference levels at
various APs, characterizing APs' coverage etc.
These changes to the radio interface and the clients'
configuration through this MIB are temporary and
won't be retained across reloads.
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.
Mobile Node ( MN )
A roaming 802.11 wireless device in a wireless
network associated with an access point.
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.
Radio Diagnosis
This process includes continuously monitoring the
radio environment to discover new 802.11 stations,
measure signal strengths, adapt robustly to
interferers and provide a visualization of the radio
topology to the administrator.
Association
The process by which an 802.11 client identifies and
gets connected to its parent AP through which it
gets the uplink to the wired network. Note that
the association happens at the MAC level and the AP
holds the MAC addresses of all the clients for
whom the AP provides uplink to the wired network.
A client, at any point of time, can remain
associated only with one AP.
Channel
An instance of medium use for the purpose of passing
protocol data units (PDUs) that may be used
simultaneously, in the same volume of space, with
other instances of medium use (on other channels) by
other instances of the same physical layer (PHY), with
an acceptably low frame error ratio due to mutual
interference. Some PHYs provide only one channel,
whereas others provide multiple channels.
Beacons
Beacons are short frames that are sent from Access
Point to stations or station-to-station in order to
organize and synchronize the wireless communication
on the Wireless LAN. Beacons serve to achieve
time synchronization among clients, exchange SSID
information, exchange information about data rates
supported by the 802.11 devices etc.,
Site Survey
Site survey is done to discover the RF behavior,
coverage and interference to decide the placement of
WLAN infrastructure devices like Access Points and
Wireless bridges to ensure that all the clients
experience continually strong RF signal strength as
they roam.
802.11a
This is a high speed physical layer extension to
the 802.11 standard on the 5 GHz band. Interfaces
compliant to 802.11a support data rates upto 54Mbps
and operate at 5.15-5.25, 5.25-5.35 and 5.725-5.825
GHz Unlicensed National Information Infrastructure
(U-NII) bands as regulated in the United States by
the code of Federal Regulations, Title 47, Section
15.407. The radio uses the Orthogonal Frequency
Division Multiplexing (OFDM) as the modulation
scheme that enables higher speeds at 54Mbps.
802.11b
The 802.11b standard operates at 2.4GHz and is
backward compatible with 802.11. An 802.11b
system operates at 5.5 and 11 Mbps in addition to
the 1 and 2 Mbps datarates specified by the 802.11
standard. 802.11b uses a modulation technique known
as Complementary Code Keying (CCK) which allows the
higher data speeds.
802.11g
This is the most recently approved standard. This
standard specifies an operational frequency of
2.4GHz and datarates upto 54Mbps. 802.11g systems
are backward compatible with 802.11b systems because
of the same operational frequencies. Like 802.11a,
802.11g uses the OFDM modulation scheme to achieve
higher speeds.
|
| cDot11RadioDiagMIBNotifs |
.1.3.6.1.4.1.9.10.105.0 |
| cDot11RadioDiagMIBObjects |
.1.3.6.1.4.1.9.10.105.1 |
| cDot11RadioDiagConfigGlobal |
.1.3.6.1.4.1.9.10.105.1.1 |
| cDot11RadioDiagMIBConform |
.1.3.6.1.4.1.9.10.105.2 |
| cDot11RadioDiagMIBCompliances |
.1.3.6.1.4.1.9.10.105.2.1 |
| cDot11RadioDiagMIBGroups |
.1.3.6.1.4.1.9.10.105.2.2 |
