H3C-DOT11-WLANEXT-MIB

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Organization: HUAWEI-3COM Technologies Co., Ltd.

Last Updated: 2007-06-08

Category: Technology: Wireless, Vendor: H3C/HH3C

Description: H3C MIB extending WLAN management with additional configuration and monitoring objects for H3C wireless networks.

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What Is H3C-DOT11-WLANEXT-MIB?

H3C-DOT11-WLANEXT-MIB is an H3C (Hangzhou Huawei-3Com, now New H3C) vendor MIB extending 802.11 WLAN management with additional RF signal quality and QoS statistics for H3C wireless access points and controllers. It exposes per-AP, per-radio RF signal statistics (average, maximum, and minimum signal strength over an interval) and QoS statistics tables identified by AP ID and radio ID. Its monitoring value is centered on wireless service/performance status: RF signal strength trends reveal coverage or interference problems on a given radio, while the QoS statistics group reveals whether voice/video traffic prioritization is functioning as expected, both important for diagnosing degraded Wi-Fi user experience. It builds on the IEEE 802.11 and 802.11e (QoS) standards referenced in its description, implying a dependency on those standards' concepts, alongside the base 802.11 MIB framework used by other vendor extensions. It is typically deployed on H3C wireless access points and WLAN controllers in enterprise wireless network deployments. Engineers can download the H3C-DOT11-WLANEXT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in H3C-DOT11-WLANEXT-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 (New H3C) wireless access points and WLAN controllers

Monitoring Examples

An operator would poll h3cDot11RFSignalStatisTable/h3cDot11RFSignalStatisEntry keyed by h3cDot11RFAPID and h3cDot11RFRadioID to read h3cDot11RFAverageSignalStrength alongside h3cDot11RFMaxSignalStrength and h3cDot11RFMinSignalStrength over the h3cDot11RFSignalStatisInterv interval. A sustained drop in h3cDot11RFAverageSignalStrength for one h3cDot11RFRadioID, combined with data from h3cDot11QosStatisTable, would reveal RF interference or a failing radio on that specific access point degrading both signal quality and QoS performance.

What Can Be Monitored

average/max/min RF signal strength per AP/radio
signal statistics collection interval
QoS statistics per AP/radio

Imported Objects

From H3C-DOT11-REF-MIB

H3cDot11ObjectIDType
H3cDot11QosAcType
H3cDot11RadioScopeType
h3cDot11	MODULE-IDENTITY

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using h3cDot11AcDropFrameCnt OID:

Select an H3C wireless access point/controller (RF signal/QoS statistics) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type h3cDot11AcDropFrameCnt into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of dropped frames in a minute for one specific access category because of full queue. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
h3cDot11WLANEXT	1.3.6.1.4.1.2011.10.2.75.7			This MIB provides more information for WLAN network. GLOSSARY IEEE 802.11 Standard to encourage interoperability among wireless networking equipment. IEEE 802.11e Standard to define the MAC procedures to support LAN applications with Quality of Service (QoS) requirements, including the transport of voice, audio and video over IEEE 802.11 wireless LANs. Access point (AP) Transmitter/receiver (transceiver) device that commonly connects and transports data between a wireless network and a wired network. Access control (AC) To control and manage multi-APs, it will bridge wireless and wired network. Radio The chip set to receive and send wireless signal. Fat AP Applied in the home, SOHO and so on, and it could independently work without help from AC. Fit AP Applied in the enterprise environment, it will work under the control and management from AC. Control And Provisioning of Wireless Access Points Protocol The short name of protocol is CAPWAP. AC will control and manage AP by CAPWAP tunnel protocol defined by IETF. Also, a data tunnel will be set up between AC and AP. Basic Service Set The IEEE 802.11 BSS of an AP comprises of the stations directly associating with the AP. It will be identified by BSSID.
h3cDot11RFGroup	1.3.6.1.4.1.2011.10.2.75.7.1
h3cDot11RFSignalStatisTable	1.3.6.1.4.1.2011.10.2.75.7.1.1		not-accessible	The table will describe statistic information of signal strength for AP radio.
h3cDot11RFSignalStatisEntry	1.3.6.1.4.1.2011.10.2.75.7.1.1.1		not-accessible	Each entry contains the signal of each signal strength information of a specific AP.
H3C h3cDot11RFAPID	1.3.6.1.4.1.2011.10.2.75.7.1.1.1.1	H3cDot11ObjectIDType	not-accessible	To identify each AP, and AP is running status.
H3C h3cDot11RFRadioID	1.3.6.1.4.1.2011.10.2.75.7.1.1.1.2	H3cDot11RadioScopeType	not-accessible	Represents each radio.
I32 h3cDot11RFSignalStatisInterv	1.3.6.1.4.1.2011.10.2.75.7.1.1.1.3	Integer32	read-only	Represents the interval of statistic.
I32 h3cDot11RFAverageSignalStrength	1.3.6.1.4.1.2011.10.2.75.7.1.1.1.4	Integer32	read-only	Represents the average value of signal strength for stations on a specific radio.
I32 h3cDot11RFMaxSignalStrength	1.3.6.1.4.1.2011.10.2.75.7.1.1.1.5	Integer32	read-only	Represents the maximum value of signal strength for stations on a specific radio.
I32 h3cDot11RFMinSignalStrength	1.3.6.1.4.1.2011.10.2.75.7.1.1.1.6	Integer32	read-only	Represents the minimum value of signal strength for stations on a specific radio.
h3cDot11QosGroup	1.3.6.1.4.1.2011.10.2.75.7.2
h3cDot11QosStatisTable	1.3.6.1.4.1.2011.10.2.75.7.2.1		not-accessible	The table defines the attributes for the Qos feature of radio.
h3cDot11QosStatisEntry	1.3.6.1.4.1.2011.10.2.75.7.2.1.1		not-accessible	Each entry contains information of the Qos attribute of each radio.
H3C h3cDot11QosAPID	1.3.6.1.4.1.2011.10.2.75.7.2.1.1.1	H3cDot11ObjectIDType	not-accessible	To uniquely identify a AP in running status.
H3C h3cDot11QosRadioID	1.3.6.1.4.1.2011.10.2.75.7.2.1.1.2	H3cDot11RadioScopeType	not-accessible	Represents each radio.
I32 h3cDot11QosAverageQueLen	1.3.6.1.4.1.2011.10.2.75.7.2.1.1.3	Integer32	read-only	The average frame numbers to be sent out in the queue.
I32 h3cDot11QosDropFrameRatio	1.3.6.1.4.1.2011.10.2.75.7.2.1.1.4	Integer32	read-only	The ratio of dropped frames in a minute because of full queue.
I32 h3cDot11QosAverageDataRate	1.3.6.1.4.1.2011.10.2.75.7.2.1.1.5	Integer32	read-only	The average transmit data rate of radio.
h3cDot11QosAcStatisTable	1.3.6.1.4.1.2011.10.2.75.7.2.2		not-accessible	The table defines the parameters for Qos access category.
h3cDot11QosAcStatisEntry	1.3.6.1.4.1.2011.10.2.75.7.2.2.1		not-accessible	Each entry contains information of each Qos access category.
H3C h3cDot11QosAcType	1.3.6.1.4.1.2011.10.2.75.7.2.2.1.1	H3cDot11QosAcType	not-accessible	The access category type.
C32 h3cDot11AcDropFrameCntEx	1.3.6.1.4.1.2011.10.2.75.7.2.2.1.2	Counter32	read-only	The number of dropped frames in a minute for one specific access category because of full queue.

RFC description

Vendor-private MIB for H3C (Huawei) wireless LAN extensions; manages 802.11 WLAN features beyond standard MIB-II requirements.

Start monitoring H3C wireless access point/controller (RF signal/QoS statistics) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download H3C-DOT11-WLANEXT-MIB