Dell-vlanVoice-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › Dell-vlanVoice-MIB

Organization: Dell

Last Updated: 2010-01-09

Category: Technology: VLAN, Vendor: Dell

Description: Manages Voice VLAN configuration for automatic IP phone traffic segregation on Dell switches.

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What Is Dell-vlanVoice-MIB?

Dell-vlanVoice-MIB is a Dell enterprise MIB for configuring and monitoring Voice VLAN functionality on Dell switches, which automatically segregates detected IP-phone traffic onto a dedicated VLAN with appropriate QoS marking. It belongs to the switching/VoIP-QoS technology area and exposes both global configuration (admin/operational state and VLAN ID of voice VLAN) and a discovered-device table listing each detected IP phone or UC device, its MAC address, interface, VLAN, 802.1p priority, and DSCP marking. This is primarily a software/configuration status MIB: it lets an operator confirm voice VLAN is not just configured but actually operational, and verify each phone in the device table was correctly auto-classified onto the voice VLAN with the right priority/DSCP for QoS treatment. It builds on the switch's standard VLAN and 802.1p/DSCP QoS infrastructure and depends on Dell's phone-detection mechanism. It is typically deployed on Dell access-layer switches supporting VoIP handsets in enterprise deployments. Network engineers evaluating or troubleshooting this functionality can download the Dell-vlanVoice-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Dell-vlanVoice-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

  • Dell managed Ethernet switch

Monitoring Examples

An operator checks vlanVoiceAdminState versus vlanVoiceOperState to confirm voice VLAN is not just configured but actually active, and compares vlanVoiceAdminVid to vlanVoiceOperVid to catch a mismatch between the intended and currently operating voice VLAN ID. The vlanVoiceUcDeviceTable/vlanVoiceUcDeviceEntry rows are polled for vlanVoiceUcDeviceMacAddress, vlanVoiceUcDeviceInterface, and vlanVoiceUcDeviceVid to confirm a specific IP phone was detected and placed on the correct VLAN and interface; values in vlanVoiceUcDeviceVpt/vlanVoiceUcDeviceDscp that don't match policy would indicate a QoS misclassification. vlanVoiceAutoAdmin and vlanVoiceAutoOper are checked to confirm automatic voice-VLAN detection itself is enabled and running.

What Can Be Monitored

  • voice VLAN admin vs operational state
  • voice VLAN ID (admin/operational)
  • detected IP phone MAC/interface/VLAN table
  • per-phone 802.1p priority and DSCP marking
  • auto voice-VLAN detection status
Imported Objects

From Dell-MIB

VlanPriority

From Dell-vlan-MIB

vlanMODULE-IDENTITY

From IF-MIB

ifIndexOBJECT-TYPE

From Q-BRIDGE-MIB

VlanIndex

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
MacAddress
RowStatus
TruthValue
OIDs

RFC description

Dell voice VLAN MIB for managing voice traffic VLAN configuration, priority tagging, and UC device connectivity.

Start monitoring Dell managed switch (Voice VLAN/IP phone auto-detection) 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 Dell-vlanVoice-MIB