VMWARE-VC-EVENT-MIB

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Organization: VMware, Inc

Last Updated: 2009-12-15

Category: Device Management

Description: Defines SNMP trap notifications sent by vCenter Server, primarily for alarm state changes on managed entities.

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What Is VMWARE-VC-EVENT-MIB?

VMWARE-VC-EVENT-MIB is VMware's MIB defining SNMP trap/notification objects sent by vCenter Server, the central management platform for VMware vSphere virtualized environments. It exposes trap payload fields describing the notification type, the affected host or virtual machine name, the target object and its type, and the old and new status values for an alarm state change. Its monitoring purpose is squarely fault/status alerting for virtualized infrastructure: it notifies operators when a host, VM, or other managed entity's alarm status changes (e.g., from green to red/yellow), effectively surfacing software and infrastructure health events rather than exposing pollable hardware counters directly. It is a notification-only companion to VMware's broader vSphere/vCenter management APIs and MIBs, with no data objects meant for periodic polling. It is typically deployed wherever vCenter Server manages ESXi hosts and virtual machines, with VMWARE-VC-EVENT-MIB SNMP monitoring forwarding alarm-state changes to a trap receiver/NMS.

IPNetwork Monitor allows you to monitor SNMP objects defined in VMWARE-VC-EVENT-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

VMware vCenter Server
VMware ESXi host / virtual machine (as monitored entities)
VMware vCenter Server (vSphere management platform)

Monitoring Examples

A network management system configured as an SNMP trap receiver would receive a vmwVpxdTrapType notification carrying vmwVpxdHostName or vmwVpxdVMName along with vmwVpxdOldStatus and vmwVpxdNewStatus, revealing that a specific host or VM's alarm state just changed (e.g., from normal to alert). The vmwVpxdTargetObj and vmwVpxdTargetObjType fields identify exactly which vSphere entity triggered the alarm. A flood of traps showing vmwVpxdNewStatus escalating to a critical value across multiple hosts would indicate a cluster-wide infrastructure problem rather than an isolated VM issue.

What Can Be Monitored

alarm state change (old vs. new status)
affected host name
affected VM name
trap/notification type
target object identity and type

Imported Objects

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From VMWARE-PRODUCTS-MIB

vmwVC

OBJECT-IDENTITY

From VMWARE-TC-MIB

VmwLongSnmpAdminString

OIDs

OID symbolic	OID numeric	Type	Access	Description
vmwVCNotifications	1.3.6.1.4.1.6876.4.3.0
NTF vpxdAlarm	1.3.6.1.4.1.6876.4.3.0.201			This notification is sent on entity alarm state change, by the vCenter Server SNMP agent. This information is also available through the vSphere client, through the Alarms screen, or through the Managed Object Browser(MOB) interface for alarms at https:///mob/?moid=AlarmManager. Listing individual objects of a specific type or ID can be done through the PropertyCollector SDK API. See http://www.vmware.com/support/developer/vc-sdk/visdk2xpubs/ReferenceGuide/vmodl.query.PropertyCollector.html for details.
NTF vpxdDiagnostic	1.3.6.1.4.1.6876.4.3.0.202			This notification is sent on starting or restarting vCenter Server, on requesting a test notification explicitly, and can also be configured to be sent periodically at a specified time interval via vCenter Server configuration by the vCenter Server SNMP agent.
NTF vpxdAlarmInfo	1.3.6.1.4.1.6876.4.3.0.203			This notification is sent on entity alarm state change, by the vCenter Server SNMP agent. This information is also available through the vSphere client, through the Alarms screen, or through the Managed Object Browser(MOB) interface for alarms at https:///mob/?moid=AlarmManager. Listing individual objects of a specific type or ID can be done through the PropertyCollector SDK API. See http://www.vmware.com/support/developer/vc-sdk/visdk2xpubs/ReferenceGuide/vmodl.query.PropertyCollector.html for details.
vmwVCMIB	1.3.6.1.4.1.6876.4.3.1			This MIB module identifies vCenter Trap notifications (traps or inform).
vmwVCMIBConformance	1.3.6.1.4.1.6876.4.3.1.2
vmwVCMIBCompliances	1.3.6.1.4.1.6876.4.3.1.2.1
vmwVCMIBBasicCompliance	1.3.6.1.4.1.6876.4.3.1.2.1.2			The compliance statement for entities which implement VMWARE-VC-EVENT-MIB.
vmwVCMIBBasicComplianceRev2	1.3.6.1.4.1.6876.4.3.1.2.1.3			The compliance statement for entities which implement VMWARE-VC-EVENT-MIB.
vmwVCMIBGroups	1.3.6.1.4.1.6876.4.3.1.2.2
vmwVCAlarmInfoGroup	1.3.6.1.4.1.6876.4.3.1.2.2.1			These objects provide alarm notification details.
vmwVCNotificationGroup	1.3.6.1.4.1.6876.4.3.1.2.2.2			Group of objects describing notifications (traps).
vmwVCAlarmGroup	1.3.6.1.4.1.6876.4.3.1.2.2.3			These objects provide alarm notification details.
vmwVCAlarmNotificationGroup	1.3.6.1.4.1.6876.4.3.1.2.2.4			Group of objects describing notifications (traps).
STR vmwVpxdTrapType	1.3.6.1.4.1.6876.4.3.301	SnmpAdminString	accessible-for-notify	This is the alarm notification type.
STR vmwVpxdHostName	1.3.6.1.4.1.6876.4.3.302	SnmpAdminString	accessible-for-notify	This is the name of the vSphere host in the notification.
STR vmwVpxdVMName	1.3.6.1.4.1.6876.4.3.303	SnmpAdminString	accessible-for-notify	This is the name of the VM in the notification.
STR vmwVpxdOldStatus	1.3.6.1.4.1.6876.4.3.304	SnmpAdminString	accessible-for-notify	This is the old status in the notification.
STR vmwVpxdNewStatus	1.3.6.1.4.1.6876.4.3.305	SnmpAdminString	accessible-for-notify	This is the new status in the notification.
STR vmwVpxdObjValue	1.3.6.1.4.1.6876.4.3.306	VmwLongSnmpAdminString	accessible-for-notify	This is the current object value in the notification.
STR vmwVpxdTargetObj	1.3.6.1.4.1.6876.4.3.307	SnmpAdminString	accessible-for-notify	This is the current object in the notification. This may be one of esx host name, vm name, or other. This value must not be empty.
INT vmwVpxdTargetObjType	1.3.6.1.4.1.6876.4.3.308	INTEGER	accessible-for-notify	This is the alarm target object type.

RFC description

VMware vCenter alarm and event notifications with trap definitions for infrastructure events.

Start monitoring VMware vCenter Server 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 VMWARE-VC-EVENT-MIB

What Is VMWARE-VC-EVENT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description