| OID symbolic | OID numeric | Type | Access | Description |
|---|
| ciscoDot11HtMacMIB | 1.3.6.1.4.1.9.9.626 | | | This MIB is intended to be implemented on Cisco's
WLAN devices that provide the wired uplink to wireless
clients through the high-throughput dot11 radios
compliant to the 802.11n specification.
The MIB describes the MAC layer parameters of the
802.11n compliant radio interfaces.
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.
A-MPDU
An aggregated format that consists of several MAC
Protocol Data Units being aggregated and transmitted
in one PHY Service Data Unit.
A-MSDU
An aggregated format that consists of several MAC
Service Data Units being aggregated and transmitted
in one MAC Protocol Data Unit.
Block-Ack
This refers to the acknowledgement done for all the
MPDUs in an A-MDPU.
Basic Service Set ( BSS )
The IEEE 802.11 BSS of an AP comprises of the
stations directly associating with the AP.
Dual CTS
Clear-To-Send control frame is sent by the receiver
in response to the Request-To-Send (RTS) control
frame from the sender to virtually reserve the
wireless medium for data transfer.
Dual CTS mechanism is used by the AP to reserve the
wireless medium for wireless devices that do not
support STBC.
Green Field
A mode of operation where high-throughput 802.11n
frames are transmitted without a legacy compatible
part.
Mobile Node ( MN )
A roaming 802.11 wireless device in a wireless
network associated with an access point. Mobile Node
and client are used interchangeably.
Modulation and Coding Scheme ( MCS )
This is a value that determines the modulation, coding and
number of spatial channels. Each scheme specifies the
modulation technique, coding rate , number of spatial
streams etc and the corresponding data rate.
Multiple Input Multiple Output ( MIMO )
This technique advocates sending and receiving data
communication signals through multiple antennas. MIMO
uses the multiple streams to transmit more information
and recombine the signal at the receiving end. This
brings more reliability and significant gain over the
traditional antenna systems.
Power Save Multi-Poll ( PSMP )
A MAC control frame that schedules the transmissions
and receptions of PSMP-enabled devices.
Phased Coexistence Operation ( PCO )
A BSS mode with alternating 20MHz and 40MHz phases of
operation controlled by a PCO AP.
Space-Time Block Coding ( STBC )
By this technique, a wireless device transmits several
copies of a data stream across a series of antennas
so that the receiver can use the various received
portions of the data signal to improve reliability of
data transfer.
Reduced Inter-Frame Space ( RIFS )
A time interval between multiple transmissions of a
single transmitter used to reduce overhead and
increase network efficiency.
TU
A measurement of time equal to 1024 microseconds.
REFERENCE
[1] Part 11. Wireless LAN Medium Access Control ( MAC )
and Physical Layer ( PHY ) Specifications: Enhancements
for Higher Throughput
[2] Enhanced Wireless Consortium MAC Specification,
v1.24
[3] Enhanced Wireless Consortium PHY Specification,
v1.27 |
| ciscoDot11HtMacMIBNotifs | 1.3.6.1.4.1.9.9.626.0 | | | |
| ciscoDot11HtMacMIBObjects | 1.3.6.1.4.1.9.9.626.1 | | | |
| cD11HtMacStationConfig | 1.3.6.1.4.1.9.9.626.1.1 | | | |
| cD11HtMacStationConfigTable | 1.3.6.1.4.1.9.9.626.1.1.1 | | not-accessible | This table represents the MAC configuration
parameters of 802.11n interfaces.
There exists in this table, an entry corresponding
to each entry in dot11PhyOperationTable where
dot11PHYType equals 'ht'(7). |
| cD11HtMacStationConfigEntry | 1.3.6.1.4.1.9.9.626.1.1.1.1 | | not-accessible | Each Entry represents a conceptual row in
ccD11HtMacStationConfigTable and corresponds to
the MAC configuration parameters of an 802.11n
interface. |
| OCT cD11HtMacOperationalMCSSet | 1.3.6.1.4.1.9.9.626.1.1.1.1.1 | OCTET STRING | read-write | This object represents the set of MCS at which the
station may transmit data. Each bit represents an
MCS index and corresponds to a particular data rate.
Each MCS shall be within the range from 0 to 127, and
shall be supported for receiving data.
This value is reported in transmitted Beacon, Probe
Request, Probe Response, Association Request,
Association Response, Reassociation Request and
Reassociation Response frames and is used to
indicate which MCS values shall be supported by all the
devices in the BSS. When this object is zeroed, it
indicates that the other stations in the BSS shall use
legacy data rates. |
| INT cD11HtMacMIMOPowerSave | 1.3.6.1.4.1.9.9.626.1.1.1.1.2 | INTEGER | read-only | This object represents the operational power save
state of MIMO. The semantics are defined as follows.
'static' - The dot11 interface is operating in static
MIMO Power Save mode and hence, other stations
should not send MIMO packets destined to this dot11
interface.
'dynamic'- The interface switches out of the MIMO
Power Save mode to enable multiple receive chains
when an RTS is received and switches back to the
single receive-chain mode once the unicast
transmission of the MPDU is complete.
'mimo' - The dot11 interface always has multiple
receive-chains enabled and hence MIMO packets can
always be sent to this interface. |
| T/F cD11HtMacNDelayedBlockAckImplemented | 1.3.6.1.4.1.9.9.626.1.1.1.1.3 | TruthValue | read-only | This object, when 'true', indicates that the
dot11 interface supports the No-Ack option of the
Delayed Block Acknowledgement. |
| INT cD11HtMacMaxAMSDULength | 1.3.6.1.4.1.9.9.626.1.1.1.1.4 | INTEGER | read-only | This object represents the supported maximum size of
A-MSDU.
'amsduSize3839' - This indicates a maximum size of
3839 octets.
'amsduSize7935' - This indicates a maximum size of
7935 octets. |
| T/F cD11HtMacPSMPImplemented | 1.3.6.1.4.1.9.9.626.1.1.1.1.5 | TruthValue | read-only | This object, when 'true', indicates that the dot11
interface is capable of supporting PSMP. |
| T/F cD11HtMacSTBCControlFrameImplemented | 1.3.6.1.4.1.9.9.626.1.1.1.1.6 | TruthValue | read-only | This object, when 'true', indicates that the dot11
interface is capable of processing the received STBC
control frames. |
| T/F cD11HtMacLsigTxOpProtectImplemented | 1.3.6.1.4.1.9.9.626.1.1.1.1.7 | TruthValue | read-only | This object, when 'true', indicates that the dot11
interface is capable of supporting L-SIG TXOP
Protection option. |
| INT cD11HtMacMaxRxAMPDUFactor | 1.3.6.1.4.1.9.9.626.1.1.1.1.8 | INTEGER | read-only | This object is used to compute the maximum length
of the A-MPDU the STA can receive, as follows.
maximum length of A-MPDU in octets =
2 ^ ( 13 + cD11HtMacMaxRxAMPDUFactor ) -1. |
| INT cD11HtMacMPDUDensity | 1.3.6.1.4.1.9.9.626.1.1.1.1.9 | INTEGER | read-only | This object represents the minimum time between the
start of adjacent MPDUs within an A-MPDU. This time
is measured at the PHY service access-point; the
number of bytes between the start of two consecutive
MPDUs in A-MPDU shall be equal or greater than
(MPDU-density*PHY-bit-rate)/8. The encoding of the
minimum time to this object is as follows.
'noTimeRestriction' - no time restriction between the
start of adjacent MPDUs.
'oneEighth' - 1/8 microseconds
'oneFourth' - 1/4 microseconds
'half' - 1/2 microseconds
'one' - 1 microsecond
'two' - 2 microseconds
'four' - 4 microseconds
'eight' - 8 microseconds. |
| T/F cD11HtMacPCOImplemented | 1.3.6.1.4.1.9.9.626.1.1.1.1.10 | TruthValue | read-only | This object, when 'true', indicates that the dot11
interface is capable of supporting Phased coexistence
operation. |
| INT cD11HtMacTransitionTime | 1.3.6.1.4.1.9.9.626.1.1.1.1.11 | INTEGER | read-only | This object indicates that the minimum transition
time within which the STA can switch between 20 MHz
channel width and 40 MHz channel width with a high
probability. |
| INT cD11HtMacMCSFeedbackImplemented | 1.3.6.1.4.1.9.9.626.1.1.1.1.12 | INTEGER | read-only | This object indicates the MCS feedback
capability supported on this 802.11n interface.
The semantics are as follows.
'none' - The station does not provide MCS feedback
through this interface.
'unsolicited' - The station provides only
unsolicited MCS feedback.
'both' - The station provides both solicited as
well as unsolicited MCS feedback. |
| T/F cD11HtMacAMSDUEnable | 1.3.6.1.4.1.9.9.626.1.1.1.1.13 | TruthValue | read-write | This object represents whether this 802.11n radio
can transmit / receive A-MSDUs. |
| T/F cD11HtMacAMPDUEnable | 1.3.6.1.4.1.9.9.626.1.1.1.1.14 | TruthValue | read-write | This object represents whether this 802.11n radio
can transmit / receive A-MPDUs. |
| cD11HtMacOperations | 1.3.6.1.4.1.9.9.626.1.2 | | | |
| cD11HtMacOperationTable | 1.3.6.1.4.1.9.9.626.1.2.1 | | not-accessible | This table represents the operational parameters
of 802.11n interfaces.
Entries in this table are created automatically
by the agent corresponding to each 802.11n
interface.
There exists in this table, an entry corresponding
to each entry in dot11PhyOperationTable where
dot11PHYType equals 'ht'(7). |
| cD11HtMacOperationEntry | 1.3.6.1.4.1.9.9.626.1.2.1.1 | | not-accessible | A conceptual row in cD11HtMacOperationTable and
represents the operational parameters of an 802.11n
interface. |
| INT cD11HtMacOperatingMode | 1.3.6.1.4.1.9.9.626.1.2.1.1.1 | INTEGER | read-write | This object represents the level of protection to be
provided to the data transmissions of 802.11n radios.
The semantics are as follows.
'pureHt' - No protection will be provided to the
high throughput tranmissions in the BSS started on
this interface. This indicates that there will
only be those high-throughput devices associated to
the AP in the respective BSS.
'optionalProtection' - Protection is optional
considering that there could be legacy devices in the
control and extension channels.
'mandatoryFortyProtection' - Protection is mandatory
for all the 40MHz channel transmissions.
'mandatoryAllProtection' - There are legacy devices
in the BSS and hence all high throughput transmissions
are mandatorily protected. |
| T/F cD11HtMacRIFSMode | 1.3.6.1.4.1.9.9.626.1.2.1.1.2 | TruthValue | read-write | This object, when set to 'true', indicates that RIFS mode
is allowed in the BSS. |
| T/F cD11HtMacPSMPControlledAccess | 1.3.6.1.4.1.9.9.626.1.2.1.1.3 | TruthValue | read-write | This object, when set to 'true', indicates that the AP
accepts associations only from PSMP-enabled clients. |
| INT cD11HtMacServiceIntervalGranularity | 1.3.6.1.4.1.9.9.626.1.2.1.1.4 | INTEGER | read-write | This object represents the service interval
granularity to be used for scheduled PSMP. The value
of the granularity is given by
(cD11HtMacServiceIntervalGranularity+1)*5
milliseconds. |
| T/F cD11HtMacDualCTSProtection | 1.3.6.1.4.1.9.9.626.1.2.1.1.5 | TruthValue | read-write | This object, when set to 'true', indicates that the AP
uses dual CTS protection to protect the regular and the
STBC transmissions. |
| T/F cD11HtMacLSigTxOpFullProtectionEnabled | 1.3.6.1.4.1.9.9.626.1.2.1.1.6 | TruthValue | read-write | This object, when set to 'true', indicates that the
LSIG-TXOP Protection is currently enabled on the
AP. |
| T/F cD11HtMacNonGFEntitiesPresent | 1.3.6.1.4.1.9.9.626.1.2.1.1.7 | TruthValue | read-write | This object, when set to 'true', indicates that
Non-GreenField clients are present in the BSS. |
| T/F cD11HtMacPCOActivated | 1.3.6.1.4.1.9.9.626.1.2.1.1.8 | TruthValue | read-write | This object, when set to 'true', indicates that the
PCO is activated. |
| INT cD11HtMacPCO20MaxDuration | 1.3.6.1.4.1.9.9.626.1.2.1.1.9 | INTEGER | read-write | This object represents the maximum duration of
20 MHz phase in TU under PCO operation. The value of
this object shall be equal to or larger than
cD11HtMacPCO20MinDuration. |
| INT cD11HtMacPCO40MaxDuration | 1.3.6.1.4.1.9.9.626.1.2.1.1.10 | INTEGER | read-write | This object represents the maximum duration
of 40 MHz phase in TU under PCO operation. The
value of this object shall be equal to or larger
than cD11HtMacPCO40MinDuration. |
| INT cD11HtMacPCO20MinDuration | 1.3.6.1.4.1.9.9.626.1.2.1.1.11 | INTEGER | read-write | This object represents the minimum duration of
20 MHz phase in TU under PCO operation. |
| INT cD11HtMacPCO40MinDuration | 1.3.6.1.4.1.9.9.626.1.2.1.1.12 | INTEGER | read-write | This object represents the minimum duration of
40 MHz phase in TU under PCO operation. |
| ciscoDot11HtMacMIBConform | 1.3.6.1.4.1.9.9.626.2 | | | |
| ciscoDot11HtMacMIBCompliances | 1.3.6.1.4.1.9.9.626.2.1 | | | |
| cD11HtMacCompliance | 1.3.6.1.4.1.9.9.626.2.1.1 | | | The compliance statement for the SNMP entities that
implement the ciscoDot11HtMacMIB module. |
| ciscoDot11HtMacMIBGroups | 1.3.6.1.4.1.9.9.626.2.2 | | | |
| ciscoDot11HtMacStationConfigGroup | 1.3.6.1.4.1.9.9.626.2.2.1 | | | This collection of objects represent the MAC
configuration parameters of 802.11n radio
interfaces. |
| ciscoDot11HtMacOperationsGroup | 1.3.6.1.4.1.9.9.626.2.2.2 | | | This collection of objects represent the MAC
operational parameters of 802.11n radio
interfaces. |
