HPN-ICF-WLANMT-MIB

All MIBs › HPN-ICF-WLANMT-MIB

Last Updated: 2014-09-28

Category: Technology: Wireless, Vendor: H3C/HH3C, Vendor: HP/HPE

Description: Manages WLAN maintenance tasks including AP firmware upgrade and configuration sync on HP/Comware controllers.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is HPN-ICF-WLANMT-MIB?

HPN-ICF-WLANMT-MIB is an HP/Comware ICF MIB providing WLAN Maintenance (WlanMt) data, reflecting the running condition of the VCPU(s) used to forward wireless packets on a wireless controller. It exposes per-VCPU utilization over the past 5 seconds along with receive, transmit, and drop packet counters, plus frame-to-CPU counters. This is direct software/hardware load monitoring: administrators watch VCPU utilization to detect a forwarding-plane CPU nearing saturation, and drop counters to catch packet loss caused by CPU overload before wireless clients experience degraded performance. It is a vendor-specific extension with no dependency on external WLAN standard MIBs, functioning purely as an internal resource-health module. It is deployed on HP/H3C Comware wireless LAN controllers/access points serving areas with existing wireless coverage. Engineers can download the HPN-ICF-WLANMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HPN-ICF-WLANMT-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

HP/H3C Comware wireless LAN controller/access point

Monitoring Examples

An administrator polls hpnicfWlanMtVCpuInfoTable/hpnicfWlanMtVCpuInfoEntry for each hpnicfWlanMtVcpuID, watching hpnicfWlanMtVcpuUsage for sustained high values indicating the wireless forwarding VCPU is overloaded. Rising hpnicfWlanMtVcpuDrop alongside high hpnicfWlanMtVcpuUsage confirms packets are being dropped due to CPU saturation rather than a link-layer issue. hpnicfWlanMtToCpuTxFrameCnt and hpnicfWlanMtToCpuDropFrameCnt further break out how many frames destined for the CPU succeeded versus were dropped, helping isolate control-plane vs. data-plane congestion.

What Can Be Monitored

per-VCPU utilization (5-second)
VCPU receive/transmit packet counts
VCPU drop packet count
frames sent to CPU
frames dropped en route to CPU

Imported Objects

From HPN-ICF-OID-MIB

hpnicfCommon

OBJECT-IDENTITY

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

How to Use in IPNetwork Monitor

Example using hpnicfWlanMtToCpuTxFrameCnt OID:

Select an HP/H3C Comware wireless LAN controller/access point (VCPU forwarding-plane load) 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 hpnicfWlanMtToCpuTxFrameCnt into the Find box to locate it in the OID tree, then select it and click OK. The total packets send to cpu successfully. 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 Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if utilization exceeds 85%, a common warning threshold before sustained high load affects performance. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
hpnicfWlanMt	1.3.6.1.4.1.11.2.14.11.15.2.157			This MIB provides information about WlanMt(Wlan Maintenance) feature. WlanMt is designed to be employed in an area that is serviced by an existing wireless network. It reflect the running situation on VCpu whitch used to forward packets. These information include: VCpu-Usage(Past 5 secons), Total Rx\Tx\Drop packets per VCpu.
hpnicfWlanMtVCpuInfoGroup	1.3.6.1.4.1.11.2.14.11.15.2.157.1
hpnicfWlanMtVCpuInfoTable	1.3.6.1.4.1.11.2.14.11.15.2.157.1.1		not-accessible	The table represents the list of possible VCpu information.
hpnicfWlanMtVCpuInfoEntry	1.3.6.1.4.1.11.2.14.11.15.2.157.1.1.1		not-accessible	Each entry contains possible information of each VCpu.
U32 hpnicfWlanMtVcpuID	1.3.6.1.4.1.11.2.14.11.15.2.157.1.1.1.1	Unsigned32	not-accessible	Represents the Id of the VCpu.
U32 hpnicfWlanMtVcpuUsage	1.3.6.1.4.1.11.2.14.11.15.2.157.1.1.1.2	Unsigned32	read-only	Represents the usage of the VCpu.
C64 hpnicfWlanMtVcpuRx	1.3.6.1.4.1.11.2.14.11.15.2.157.1.1.1.3	Counter64	read-only	Represents the number of packets whitch vcpu has recieved.
C64 hpnicfWlanMtVcpuTx	1.3.6.1.4.1.11.2.14.11.15.2.157.1.1.1.4	Counter64	read-only	Represents the number of packets whitch vcpu has transmitted.
C64 hpnicfWlanMtVcpuDrop	1.3.6.1.4.1.11.2.14.11.15.2.157.1.1.1.5	Counter64	read-only	Represents the number of packets whitch vcpu has Dropped.
hpnicfWlanMtFrameToCpu	1.3.6.1.4.1.11.2.14.11.15.2.157.2
C64 hpnicfWlanMtToCpuTxFrameCntEx	1.3.6.1.4.1.11.2.14.11.15.2.157.2.1	Counter64	read-only	The total packets send to cpu successfully.
C64 hpnicfWlanMtToCpuDropFrameCnt	1.3.6.1.4.1.11.2.14.11.15.2.157.2.2	Counter64	read-only	The total packets send to cpu failed.

RFC description

Monitors wireless LAN maintenance features including virtual CPU usage and packet statistics on HP/Aruba access controllers.

Start monitoring HP/H3C Comware wireless LAN controller/access point (VCPU forwarding-plane load) 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 HPN-ICF-WLANMT-MIB