DLINK-L2MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DLINK-L2MGMT-MIB

Organization: D-Link, Inc.

Last Updated: 2000-07-15

Category: Technology: Bridging, Technology: VLAN, Vendor: D-Link

Description: Provides Layer 2 management objects for VLAN, STP, MAC address table, and switching on D-Link devices.

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What Is DLINK-L2MGMT-MIB?

This is a D-Link proprietary MIB covering Layer 2 switching management on D-Link devices, notably trunk (link aggregation) formation and IGMP-related functions per its module description, alongside broader L2 management such as VLANs, spanning tree, and the MAC address table per its short description. It exposes configuration and status data for these switching features, giving visibility into how the switch is forwarding and aggregating traffic at Layer 2. For monitoring purposes it supports checking the health and state of trunk/link-aggregation groups, STP port states, VLAN membership, and MAC address table entries; an admin would use it to catch a trunk member link that has dropped out of aggregation or an STP port stuck in blocking when it should be forwarding. It complements standard IETF MIBs such as BRIDGE-MIB, IEEE8023-LAG-MIB, and Q-BRIDGE-MIB by adding D-Link-specific extensions rather than replacing them. It is used on D-Link switches in networks relying on link aggregation, VLANs, and spanning tree for Layer 2 resiliency and segmentation. Engineers can download the DLINK-L2MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DLINK-L2MGMT-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

  • D-Link managed switch

Monitoring Examples

No sample object names were provided for this module, so specific OIDs cannot be cited here. Based on its description, a realistic scenario is polling trunk/link-aggregation group membership and per-port STP state to detect a link that has dropped out of a trunk or a port stuck in a non-forwarding STP state, and checking MAC address table entries to confirm expected hosts are learned on the correct ports.

What Can Be Monitored

  • link aggregation/trunk group status
  • spanning tree port state
  • VLAN membership
  • MAC address table entries
  • IGMP-related switching state
Imported Objects

From DLINK-ID-REC-MIB

dlink-common-mgmt

From RFC1155-SMI

IpAddress

From RFC1213-MIB

DisplayString

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
OIDs

RFC description

Manages Layer 2 switch functions including port trunking, port mirroring, and IGMP operations for D-Link devices.

Start monitoring D-Link managed switch (Layer 2 trunk/IGMP management) 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 DLINK-L2MGMT-MIB