A10-AX-TRAPS

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsA10-AX-TRAPS

Category: Alarm and Event Management, Vendor: A10 Networks

Description: Provides SNMP trap definitions for A10 Networks AX Series load balancers, including health-check and resource alert traps.

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What Is A10-AX-TRAPS?

A10-AX-TRAPS is the companion vendor MIB from A10 Networks that defines the actual SNMP NOTIFICATION-TYPE (trap) definitions fired by AX Series application delivery controllers and load balancers, as opposed to the payload objects carried in A10-AX-NOTIFICATIONS. It belongs to the A10 AX product line's fault-management framework, covering events such as server-load-balancing health-check failures, virtual-server state changes, and resource-threshold alarms. Its purpose is fault/event monitoring rather than static configuration: it lets an NMS know the instant a real server, virtual server, or trunk changes state or a configured usage threshold is crossed. Each trap embeds the objects from A10-AX-NOTIFICATIONS, so the two modules are tightly coupled and must be loaded together for traps to decode correctly. It's deployed wherever A10 AX/Thunder appliances balance traffic to server farms and operations teams want immediate alerts rather than only polling. Engineers can download the A10-AX-TRAPS file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A10-AX-TRAPS. 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

  • A10 Networks AX Series application delivery controller / load balancer

Monitoring Examples

A trap bound to axNotificationSLBServer, axNotificationSLBPort, and axNotificationSLBCurConns fires when a load-balanced pool member fails its health check or exceeds its connection ceiling, letting an admin pull it from rotation. Another trap carrying axNotificationDroppedPackets alongside axNotificationConfiguredThreshold and axNotificationCurrentUsage signals that a rate-limit or bandwidth threshold on a virtual server has been breached and packets are being discarded. axNotificationConnLimit and axNotificationTrunkID let the receiver distinguish a per-connection-limit event from a trunk/link-level fault.

What Can Be Monitored

  • SLB server health-check state changes
  • virtual server up/down events
  • connection limit breaches
  • dropped packet alarms
  • configured threshold vs current usage
  • trunk fault events
Imported Objects

From A10-AX-MIB

axLoggingOBJECT-IDENTITY
axNotificationOBJECT-IDENTITY

From INET-ADDRESS-MIB

InetAddressType

From SNMPv2-SMI

Counter32
Integer32
OBJECT-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
DisplayString
PhysAddress

How to Use in IPNetwork Monitor

Example using axNotificationSLBCurConns OID:

Select an A10 Networks Thunder ADC 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 axNotificationSLBCurConns into the Find box to locate it in the OID tree, then select it and click OK. The current total of connections. 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 sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

SNMPv1 trap definitions for A10 AX load balancer system, application, and network events.

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Download A10-AX-TRAPS