A3COM-HUAWEI-DOT11-QOS-MIB

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Organization: Hangzhou H3C Technologies Co., Ltd.

Last Updated: 2008-07-23

Category: Quality of Service, Vendor: H3C/HH3C, Wireless and WLAN

Description: Manages 802.11 EDCA and WMM quality-of-service parameters and traffic priority statistics on H3C WLAN devices.

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What Is A3COM-HUAWEI-DOT11-QOS-MIB?

A3COM-HUAWEI-DOT11-QOS-MIB manages 802.11 wireless QoS on H3C/Huawei WLAN access points and controllers, implementing WMM (Wi-Fi Multimedia) and EDCA (Enhanced Distributed Channel Access) channel-contention parameters to prioritize voice and video traffic over a shared radio. It exposes per-radio WMM enable state, per-access-category EDCA contention parameters (such as AIFSN), channel admission control (CAC) policy, channel-utilization values, and associated user counts. It is useful for monitoring wireless service quality and capacity rather than physical hardware faults: channel-utilization and CAC user-count objects reveal how close a radio is to being fully loaded, a leading indicator of degraded voice/video quality. Dependency: it is a vendor-specific extension built on IEEE 802.11e WMM/EDCA concepts rather than a direct implementation of a single IETF RFC. Typical deployment is in enterprise WLANs using H3C/Huawei access points where voice and video traffic require differentiated QoS treatment. Engineers can download the A3COM-HUAWEI-DOT11-QOS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-HUAWEI-DOT11-QOS-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

H3C/Huawei wireless access points and WLAN controllers

Monitoring Examples

Walking h3cDot11RadioWmmEdcaCfgTable (keyed by h3cDot11WmmRadioIndex and h3cDot11RadioWmmAC) lets an admin verify EDCA contention parameters such as h3cDot11RadioWmmAifsn are correctly tuned for the voice access category on a given radio. Monitoring h3cDot11RadioCacChlUtlValue alongside h3cDot11RadioCacUserNum reveals when a radio's channel utilization is climbing toward its CAC admission-control threshold, signaling that additional voice/video calls may soon be rejected due to capacity.

What Can Be Monitored

WMM enable status per radio
EDCA AIFSN/priority parameters per access category
channel admission control (CAC) policy
channel utilization
associated user count
SVP-to-AC traffic mapping

Imported Objects

From A3COM-HUAWEI-DOT11-REF-MIB

H3cDot11ObjectIDType
H3cDot11QosAcType
H3cDot11RadioElementIndex
H3cDot11RadioScopeType
h3cDot11	MODULE-IDENTITY

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
h3cDot11QoS	1.3.6.1.4.1.43.45.1.10.2.75.9			This MIB provides information about WLAN QoS configuration. GLOSSARY IEEE 802.11 Standard to encourage interoperability among wireless networking equipment. WMM WMM is a wireless QoS protocol designed to preferentially transmit packets with high priority, thus guaranteeing better QoS services for voice and video applications in a wireless network. EDCA Enhanced distributed channel access (EDCA) is a channel contention mechanism designed by WMM to preferentially transmit packets with high priority and allocate more bandwidth to such packets. AC Access category (AC), is used for channel contention. WMM defines four access categories; they are AC-VO (voice), AC-VI (video), AC-BE (best-effort), and AC-BK (background) in the descending order of priority. When contending for a channel, a high-priority AC preempts a low-priority AC. CAC Connection admission control (CAC) limits the number of clients that are using high-priority ACs (AC-VO and AC-VI) to guarantee sufficient bandwidth for existing high-priority traffic. U-APSD Unscheduled automatic power-save delivery (U-APSD) is a new power saving mechanism defined by WMM to enhance the power saving capability of clients. SVP SpectraLink voice priority (SVP) is a voice priority protocol designed by the Spectralink company to guarantee QoS for voice traffic.
h3cDot11WmmCfgGroup	1.3.6.1.4.1.43.45.1.10.2.75.9.1
h3cDot11RadioWmmCfgTable	1.3.6.1.4.1.43.45.1.10.2.75.9.1.1		not-accessible	The table defines the basic parameters for WMM configuration.
h3cDot11RadioWmmCfgEntry	1.3.6.1.4.1.43.45.1.10.2.75.9.1.1.1		not-accessible	This entry contains the basic information for WMM configuration.
H3C h3cDot11WmmRadioIndex	1.3.6.1.4.1.43.45.1.10.2.75.9.1.1.1.1	H3cDot11RadioElementIndex	not-accessible	Represents index of the radio.
T/F h3cDot11RadioWmmEnabled	1.3.6.1.4.1.43.45.1.10.2.75.9.1.1.1.2	TruthValue	read-write	Represents the status of WMM in radio. 'true' : The WMM function is enabled. 'false': The WMM function is disabled.
H3C h3cDot11RadioSVPMapToAC	1.3.6.1.4.1.43.45.1.10.2.75.9.1.1.1.3	H3cDot11WMMSVPMapAC	read-write	Represents the AC level which SVP packets are assigned to. 'acbk' : Specifies the AC-BK (background traffic) queue. 'acbe' : Specifies the AC-BE (best-effort traffic) queue. 'acvi' : Specifies the AC-VI (video traffic) queue. 'acvo' : Specifies the AC-VO (voice traffic) queue. 'disable' : Disable SVP packet mapping.
H3C h3cDot11RadioCacPolicy	1.3.6.1.4.1.43.45.1.10.2.75.9.1.1.1.4	H3cDot11WMMCACPolicy	read-write	Represents the policy for CAC. CAC requires that a client obtain permission of the AP before it can use a high-priority AC for transmission, thus guaranteeing bandwidth to the clients that have gained access. CAC controls real time traffic (AC-VO and AC-VI traffic) but not common data traffic (AC-BE and AC-BK traffic).
I32 h3cDot11RadioCacChlUtlValue	1.3.6.1.4.1.43.45.1.10.2.75.9.1.1.1.5	Integer32	read-write	Represents Maximum channel utilization rate, that is, the medium time of the accepted AC-VO traffic and AC-VI traffic to the valid time during the unit time. This object can be set only if the value of h3cDot11RadioCacPolicy is ChannelUtilization.
I32 h3cDot11RadioCacUserNum	1.3.6.1.4.1.43.45.1.10.2.75.9.1.1.1.6	Integer32	read-write	Represents the users-based admission policy for CAC. This object can be set only if the value of h3cDot11RadioCacPolicy is userNumber.
h3cDot11RadioWmmEdcaCfgTable	1.3.6.1.4.1.43.45.1.10.2.75.9.1.2		not-accessible	The table defines the basic parameters for EDCA configuration of radio.
h3cDot11RadioWmmEdcaCfgEntry	1.3.6.1.4.1.43.45.1.10.2.75.9.1.2.1		not-accessible	This entry contains the basic information for EDCA configuration of radio.
H3C h3cDot11RadioWmmAC	1.3.6.1.4.1.43.45.1.10.2.75.9.1.2.1.1	H3cDot11QosAcType	not-accessible	Represents the AC level index of EDCA parameters of radio. 'acbk' : Specifies AC-BK (background traffic). 'acbe' : Specifies AC-BE (best-effort traffic). 'acvi' : Specifies AC-VI (video traffic). 'acvo' : Specifies AC-VO (voice traffic).
I32 h3cDot11RadioWmmAifsn	1.3.6.1.4.1.43.45.1.10.2.75.9.1.2.1.2	Integer32	read-write	Represents AIFSN parameter of EDCA. The value range of this object is limited by the radio chip capability.
I32 h3cDot11RadioWmmEcwMin	1.3.6.1.4.1.43.45.1.10.2.75.9.1.2.1.3	Integer32	read-write	Represents ECWmin parameter of EDCA. The value range of this object is limited by the radio chip capability. ECWmin parameter of EDCA must be smaller than ECWmax parameter.
I32 h3cDot11RadioWmmEcwMax	1.3.6.1.4.1.43.45.1.10.2.75.9.1.2.1.4	Integer32	read-write	Represents ECWmax parameter of EDCA. The value range of this object is limited by the radio chip capability. ECWmin parameter of EDCA must be larger than ECWmax parameter.
I32 h3cDot11RadioWmmTxoplimit	1.3.6.1.4.1.43.45.1.10.2.75.9.1.2.1.5	Integer32	read-write	Represents TXOPLimit parameter of EDCA, the value must be in the range of 0 to 65535 (in units of 32 microseconds). The TXOP value of 0 indicates that only one MPDU can be transmitted. The range of this argument is limited by the radio chip capability.
T/F h3cDot11RadioWmmNoAck	1.3.6.1.4.1.43.45.1.10.2.75.9.1.2.1.6	TruthValue	read-write	Represents the AC to adopt the No ACK policy. The protocol defines two ACK policies: Normal ACK and No ACK.
h3cDot11StationWmmEdcaTable	1.3.6.1.4.1.43.45.1.10.2.75.9.1.3		not-accessible	The table defines the basic parameters for EDCA configuration of station.
h3cDot11StationWmmEdcaEntry	1.3.6.1.4.1.43.45.1.10.2.75.9.1.3.1		not-accessible	This entry contains the basic information for EDCA configuration of client. If CAC is enabled for an AC, CAC is also enabled for ACs with higher priority. For example, if CAC is enabled for AC-VI, CAC is also enabled for AC-VO. However, enabling CAC for AC-VO does not enable CAC for AC-VI.
H3C h3cDot11StationWmmAC	1.3.6.1.4.1.43.45.1.10.2.75.9.1.3.1.1	H3cDot11QosAcType	not-accessible	Represents the AC level index of EDCA parameters of client. 'acbk' : Specifies AC-BK (background traffic). 'acbe' : Specifies AC-BE (best-effort traffic). 'acvi' : Specifies AC-VI (video traffic). 'acvo' : Specifies AC-VO (voice traffic).
I32 h3cDot11StationWmmAifsn	1.3.6.1.4.1.43.45.1.10.2.75.9.1.3.1.2	Integer32	read-write	Represents AIFSN parameter of EDCA.
I32 h3cDot11StationWmmEcwMin	1.3.6.1.4.1.43.45.1.10.2.75.9.1.3.1.3	Integer32	read-write	Represents ECWmin parameter of EDCA.
I32 h3cDot11StationWmmEcwMax	1.3.6.1.4.1.43.45.1.10.2.75.9.1.3.1.4	Integer32	read-write	Represents ECWmax parameter of EDCA.
I32 h3cDot11StationWmmTxoplimit	1.3.6.1.4.1.43.45.1.10.2.75.9.1.3.1.5	Integer32	read-write	Represents TXOPLimit parameter of EDCA, the value is in units of 32 microseconds. The TXOP value of 0 indicates that only one MPDU can be transmitted.
T/F h3cDot11StationWmmCacEnabled	1.3.6.1.4.1.43.45.1.10.2.75.9.1.3.1.6	TruthValue	read-write	Represents the AC to adopt the No ACK policy. The protocol defines two ACK policies: Normal ACK and No ACK. Only if the value of h3cDot11StationWmmAC is 'acvo' or 'acvi', Cac can be set correctly here.
h3cDot11WmmResetGroup	1.3.6.1.4.1.43.45.1.10.2.75.9.1.4
I32 h3cDot11WmmResetRadioByAP	1.3.6.1.4.1.43.45.1.10.2.75.9.1.4.1	Integer32	read-write	Clear the WMM statistics information of the radio of the specified AP or all radios. The meaning of this object is the same as h3cDot11APElementIndex, it represents the index of AP element. If the value of this object is set to 0xFFFFFFFF, WMM statistics information of all radios will be cleared. The value of this object is always 0 with the get operation.
I32 h3cDot11WmmResetStationByAP	1.3.6.1.4.1.43.45.1.10.2.75.9.1.4.2	Integer32	read-write	Clear the WMM statistics information of the clients associated with the specified AP, or of all clients. The meaning of this object is the same as h3cDot11APElementIndex, it represents the index of AP element. If set with the 0xFFFFFFFF, it will clear the WMM statistics information of all clients. The value of this object is always 0 with the get operation.
h3cDot11RadioWmmEdcaCfg2Table	1.3.6.1.4.1.43.45.1.10.2.75.9.1.5		not-accessible	The table defines the basic parameters for EDCA configuration of radio.
h3cDot11RadioWmmEdcaCfg2Entry	1.3.6.1.4.1.43.45.1.10.2.75.9.1.5.1		not-accessible	This entry contains the basic information for EDCA configuration of radio.
H3C h3cDot11WMMAPSerialID	1.3.6.1.4.1.43.45.1.10.2.75.9.1.5.1.1	H3cDot11ObjectIDType	not-accessible	Serial ID of the AP.
H3C h3cDot11WMMRdId	1.3.6.1.4.1.43.45.1.10.2.75.9.1.5.1.2	H3cDot11RadioScopeType	not-accessible	radio ID of the radio.
H3C h3cDot11RdWmmAC	1.3.6.1.4.1.43.45.1.10.2.75.9.1.5.1.3	H3cDot11QosAcType	not-accessible	Represents the AC level index of EDCA parameters of radio. 'acbk' : Specifies AC-BK (background traffic). 'acbe' : Specifies AC-BE (best-effort traffic). 'acvi' : Specifies AC-VI (video traffic). 'acvo' : Specifies AC-VO (voice traffic).
I32 h3cDot11RdWmmAifsn	1.3.6.1.4.1.43.45.1.10.2.75.9.1.5.1.4	Integer32	read-write	Represents AIFSN parameter of EDCA. The value range of this object is limited by the radio chip capability.
I32 h3cDot11RdWmmEcwMin	1.3.6.1.4.1.43.45.1.10.2.75.9.1.5.1.5	Integer32	read-write	Represents ECWmin parameter of EDCA. The value range of this object is limited by the radio chip capability. ECWmin parameter of EDCA must be smaller than ECWmax parameter.
I32 h3cDot11RdWmmEcwMax	1.3.6.1.4.1.43.45.1.10.2.75.9.1.5.1.6	Integer32	read-write	Represents ECWmax parameter of EDCA. The value range of this object is limited by the radio chip capability. ECWmin parameter of EDCA must be larger than ECWmax parameter.
I32 h3cDot11RdWmmTxoplimit	1.3.6.1.4.1.43.45.1.10.2.75.9.1.5.1.7	Integer32	read-write	Represents TXOPLimit parameter of EDCA, the value must be in the range of 0 to 65535 (in units of 32 microseconds). The TXOP value of 0 indicates that only one MPDU can be transmitted. The range of this argument is limited by the radio chip capability.

RFC description

Manages 802.11 wireless QoS including WMM/EDCA configuration for H3C WLAN controllers.

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Download A3COM-HUAWEI-DOT11-QOS-MIB

What Is A3COM-HUAWEI-DOT11-QOS-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description