DGS-3420-28PC-L2MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DGS-3420-28PC-L2MGMT-MIB

Organization: D-Link Corp.

Last Updated: 2010-11-15

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

Description: Covers VLANs, STP, port security, and other L2 features for the 28-port PoE D-Link DGS-3420-28PC switch.

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What Is DGS-3420-28PC-L2MGMT-MIB?

This is a D-Link enterprise MIB that provides Layer 2 switch management for the DGS-3420-28PC, a 28-port Gigabit Ethernet PoE switch. It exposes configuration and status data for VLANs, Spanning Tree Protocol, port security, and other Layer 2 forwarding features on the switch. As a management MIB it is used primarily to monitor and configure switch software behavior rather than raw hardware sensors, letting an administrator confirm VLAN membership, STP port states, and L2 forwarding table health remain correct. It commonly depends on standard IETF MIBs such as BRIDGE-MIB and IF-MIB for underlying interface and bridging data that it extends with D-Link-specific objects. It is typically deployed in enterprise or campus wiring closets where PoE-capable access switches need centralized, vendor-specific L2 management alongside standard SNMP monitoring tools. Engineers can download the DGS-3420-28PC-L2MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DGS-3420-28PC-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-3420-28PC PoE switch

Monitoring Examples

No object/table names were provided in the sample data for this module, so a specific object-level polling example cannot be given without risking invented names. In general, an L2 management MIB of this type would let an operator poll VLAN membership tables and STP port-state objects to detect misconfigured trunks or blocked ports. Because no concrete objects are available here, this description is limited to the general structure implied by the module description.

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-Dgs3420-28PC
OIDs

RFC description

L2 management MIB for D-Link DGS-3420-28PC 28-port PoE switch covering VLANs, STP, port security, and L2 features.

Start monitoring D-Link DGS-3420-28PC 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-3420-28PC-L2MGMT-MIB