A3COM-HUAWEI-DOT11-WLANEXT-MIB

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

Last Updated: 2007-06-08

Category: Vendor: H3C/HH3C, Wireless and WLAN

Description: Provides extended WLAN management objects for H3C 802.11 networks beyond standard IEEE definitions.

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

A3COM-HUAWEI-DOT11-WLANEXT-MIB is a joint H3C/3Com (Huawei-3Com) vendor extension MIB that supplements the standard IEEE 802.11 MIB with additional wireless LAN management objects, as its description references 802.11 and 802.11e QoS. It exposes per-access-point, per-radio RF signal-quality statistics and QoS statistics for wireless LAN infrastructure. From a monitoring standpoint it tracks the radio-frequency health of access points — average/maximum/minimum signal strength per radio over a configurable statistics interval — and QoS-related statistics, together revealing RF interference, weak coverage, or degraded voice/video service on the WLAN. It is explicitly an extension to the standard IEEE 802.11 MIB (and implicitly the 802.11e QoS model), so it is deployed alongside the standard dot11 MIB rather than replacing it. Typical deployment is on H3C/3Com wireless access points and WLAN controllers in enterprise Wi-Fi deployments. Engineers can download the A3COM-HUAWEI-DOT11-WLANEXT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-HUAWEI-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/3Com wireless access point
H3C/3Com WLAN controller

Monitoring Examples

An admin would poll h3cDot11RFSignalStatisTable (keyed by h3cDot11RFAPID and h3cDot11RFRadioID) to read h3cDot11RFAverageSignalStrength, h3cDot11RFMaxSignalStrength, and h3cDot11RFMinSignalStrength over each h3cDot11RFSignalStatisInterv, catching an access point whose average signal has dropped due to interference or a failing radio. In parallel, h3cDot11QosStatisTable (keyed by h3cDot11QosAPID/h3cDot11QosRadioID) exposes per-AP QoS statistics that would show degraded voice/video traffic handling on a specific radio. Both tables let an operator pinpoint which AP/radio pair needs attention rather than only seeing WLAN-wide symptoms.

What Can Be Monitored

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

Imported Objects

From A3COM-HUAWEI-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 controller or access point 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	1.3.6.1.4.1.43.45.1.10.2.75.7			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	1.3.6.1.4.1.43.45.1.10.2.75.7.1
h3cDot11RFSignalStatisTable	1.3.6.1.4.1.43.45.1.10.2.75.7.1.1		not-accessible	The table will describe statistic information of signal strength for AP radio.
h3cDot11RFSignalStatisEntry	1.3.6.1.4.1.43.45.1.10.2.75.7.1.1.1		not-accessible	Each entry contains the signal of each signal strength information of a specific AP.
H3C h3cDot11RFAPID	1.3.6.1.4.1.43.45.1.10.2.75.7.1.1.1.1	H3cDot11ObjectIDType	not-accessible	To identify each AP, and AP is running status.
H3C h3cDot11RFRadioID	1.3.6.1.4.1.43.45.1.10.2.75.7.1.1.1.2	H3cDot11RadioScopeType	not-accessible	Represents each radio.
I32 h3cDot11RFSignalStatisInterv	1.3.6.1.4.1.43.45.1.10.2.75.7.1.1.1.3	Integer32	read-only	Represents the interval of statistic.
I32 h3cDot11RFAverageSignalStrength	1.3.6.1.4.1.43.45.1.10.2.75.7.1.1.1.4	Integer32	read-only	Represents the average value of signal strength for stations on a specific radio.
I32 h3cDot11RFMaxSignalStrength	1.3.6.1.4.1.43.45.1.10.2.75.7.1.1.1.5	Integer32	read-only	Represents the maximum value of signal strength for stations on a specific radio.
I32 h3cDot11RFMinSignalStrength	1.3.6.1.4.1.43.45.1.10.2.75.7.1.1.1.6	Integer32	read-only	Represents the minimum value of signal strength for stations on a specific radio.
h3cDot11QosGroup	1.3.6.1.4.1.43.45.1.10.2.75.7.2
h3cDot11QosStatisTable	1.3.6.1.4.1.43.45.1.10.2.75.7.2.1		not-accessible	The table defines the attributes for the Qos feature of radio.
h3cDot11QosStatisEntry	1.3.6.1.4.1.43.45.1.10.2.75.7.2.1.1		not-accessible	Each entry contains information of the Qos attribute of each radio.
H3C h3cDot11QosAPID	1.3.6.1.4.1.43.45.1.10.2.75.7.2.1.1.1	H3cDot11ObjectIDType	not-accessible	To uniquely identify a AP in running status.
H3C h3cDot11QosRadioID	1.3.6.1.4.1.43.45.1.10.2.75.7.2.1.1.2	H3cDot11RadioScopeType	not-accessible	Represents each radio.
I32 h3cDot11QosAverageQueLen	1.3.6.1.4.1.43.45.1.10.2.75.7.2.1.1.3	Integer32	read-only	The average frame numbers to be sent out in the queue.
I32 h3cDot11QosDropFrameRatio	1.3.6.1.4.1.43.45.1.10.2.75.7.2.1.1.4	Integer32	read-only	The ratio of dropped frames in a minute because of full queue.
I32 h3cDot11QosAverageDataRate	1.3.6.1.4.1.43.45.1.10.2.75.7.2.1.1.5	Integer32	read-only	The average transmit data rate of radio.
h3cDot11QosAcStatisTable	1.3.6.1.4.1.43.45.1.10.2.75.7.2.2		not-accessible	The table defines the parameters for Qos access category.
h3cDot11QosAcStatisEntry	1.3.6.1.4.1.43.45.1.10.2.75.7.2.2.1		not-accessible	Each entry contains information of each Qos access category.
H3C h3cDot11QosAcType	1.3.6.1.4.1.43.45.1.10.2.75.7.2.2.1.1	H3cDot11QosAcType	not-accessible	The access category type.
C32 h3cDot11AcDropFrameCntEx	1.3.6.1.4.1.43.45.1.10.2.75.7.2.2.1.2	Counter32	read-only	The number of dropped frames in a minute for one specific access category because of full queue.

RFC description

Provides extended WLAN information for IEEE 802.11 wireless access points and controllers on Huawei-3Com devices.

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Download A3COM-HUAWEI-DOT11-WLANEXT-MIB