EXTREME-VLAN-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsEXTREME-VLAN-MIB

Organization: Extreme Networks, Inc.

Last Updated: 2000-07-24

Category: VLAN and Bridging, Vendor: Extreme Networks

Description: Manages VLAN configuration and status on Extreme Networks switches, including VLAN creation, port membership, and tagging settings.

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What Is EXTREME-VLAN-MIB?

EXTREME-VLAN-MIB is an Extreme Networks proprietary MIB for managing VLAN configuration and status on Extreme switches, covering VLAN creation, port membership, and tagging settings. It exposes configuration-oriented data describing how VLANs are defined and which switch ports belong to each VLAN, including tagged versus untagged membership. Its role in monitoring is primarily software/configuration status—tracking whether VLANs exist as expected and whether port membership matches intended network segmentation—rather than physical hardware sensors like temperature or power. It complements standard bridge/VLAN MIBs (such as Q-BRIDGE-MIB) though it is implemented as an Extreme-specific enterprise extension. It is deployed on Extreme Networks Ethernet switches in enterprise and data center LAN environments, and administrators commonly load EXTREME-VLAN-MIB into an MIB Browser first to explore its VLAN and port-membership tables before scripting automated polling.

IPNetwork Monitor allows you to monitor SNMP objects defined in EXTREME-VLAN-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

  • Extreme Networks 5420 Series (2024) — current stackable edge switch with multi-gig PoE, running ExtremeXOS

Monitoring Examples

No sample object names were supplied for this module, so a fully grounded polling example cannot be given; based on its stated purpose, an admin would typically poll a VLAN table for VLAN existence and name, and a port-membership table to confirm which ports are tagged or untagged members of each VLAN. An unexpected port dropping out of a VLAN's membership table would indicate a misconfiguration or a port that lost its VLAN assignment.

What Can Be Monitored

  • VLAN existence and naming
  • port VLAN membership
  • tagged/untagged port assignment
Imported Objects

From EXTREME-BASE-MIB

PortList
extremeAgentOBJECT-IDENTITY

From EXTREME-SYSTEM-MIB

extremeSlotNumberOBJECT-TYPE

From IF-MIB

InterfaceIndex
InterfaceIndexOrZero

From SNMPv2-SMI

Counter64
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
MacAddress
RowStatus
TruthValue
OIDs

FAQ

What is EXTREME-VLAN-MIB used for when managing VLANs on Extreme Networks switches?
It exposes VLAN existence and naming along with per-port VLAN membership, including tagged versus untagged assignment, so an admin can confirm each switch's VLANs are defined as expected and verify which ports carry which VLANs.

How would I audit port VLAN membership across a fleet of Extreme switches?
By polling the port VLAN membership and tagged/untagged assignment tables, a monitoring tool can compare each switch's actual segmentation against the intended design and flag any port whose VLAN membership or tagging doesn't match, a common cause of connectivity problems after network changes.

RFC description

Manages VLAN encapsulation on Extreme Networks devices, supporting IEEE 802.1Q tagging and per-port VLAN configuration.

Start monitoring Extreme Networks switch (VLAN configuration/port membership) 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 EXTREME-VLAN-MIB