DGS-3420-52P-L2MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DGS-3420-52P-L2MGMT-MIB

Organization: D-Link Corp.

Last Updated: 2010-11-15

Category: Technology: PoE, Technology: Switching/L2, Vendor: D-Link

Description: L2 management MIB for D-Link DGS-3420-52P 52-port PoE switch covering VLANs, STP, and L2 management features.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is DGS-3420-52P-L2MGMT-MIB?

This proprietary D-Link MIB defines Layer 2 network management information for the DGS-3420-52P, a 52-port PoE Gigabit switch, covering VLAN, Spanning Tree Protocol, and other L2 switching management features. It exposes L2 configuration and status state rather than raw counters, letting an operator confirm the switch's switching-plane behavior matches intended design. Its monitoring value lies in verifying L2 topology health, such as STP port states and VLAN assignments, on a switch that also manages PoE delivery to endpoints, making it useful for catching topology loops, misconfigured VLANs, or unexpected STP transitions that could disrupt connected devices. It is a proprietary companion to D-Link's L3-management and resource-management MIBs for the same switch family, alongside standard bridge/STP MIB concepts. It is deployed on DGS-3420-52P switches in campus access layers powering IP phones, cameras, and access points over PoE. Network engineers evaluating or troubleshooting this functionality can download the DGS-3420-52P-L2MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DGS-3420-52P-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 DGS-3420-52P PoE switch

Monitoring Examples

No sample object or table names were supplied for this module in the available excerpt, so a specific OID walk cannot be shown. Conceptually an administrator would poll its VLAN membership and STP port-state tables (following the *VlanTable/*StpPortTable naming pattern common to D-Link L2MGMT modules) to confirm no unexpected topology changes or VLAN misassignments have occurred. This is inferred from the module's stated purpose since sample_objects were not provided.

What Can Be Monitored

  • VLAN membership state
  • spanning tree port state
  • L2 switching configuration status
  • PoE port status
Imported Objects

From DLINK-ID-REC-MIB

AgentNotifyLevel

From IEEE8021-CFM-MIB

dot1agCfmMaIndexOBJECT-TYPE
dot1agCfmMdIndexOBJECT-TYPE
dot1agCfmMepIdentifierOBJECT-TYPE

From PORT-SECURITY-MIB

swPortSecPortIndexOBJECT-TYPE

From RFC1155-SMI

Counter

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

DisplayString
RowStatus
TEXTUAL-CONVENTION
TruthValue

From SWDGS3420PRIMGMT-MIB

dlink-Dgs3420Proj-Dgs3420-52P
OIDs

RFC description

D-Link DGS-3420-52P switch vendor MIB for Layer 2 management including VLAN, bridge, and CFM configuration.

Start monitoring D-Link DGS-3420-52P PoE switch 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 DGS-3420-52P-L2MGMT-MIB