DGS-3420-28SC-L2MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DGS-3420-28SC-L2MGMT-MIB

Organization: D-Link Corp.

Last Updated: 2010-11-15

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

Description: L2 management MIB for D-Link DGS-3420-28SC 28-port SFP switch covering VLAN, STP, LACP, and L2 management.

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

DGS-3420-28SC-L2MGMT-MIB is a D-Link private MIB providing Layer 2 network management objects for the DGS-3420-28SC, a 28-port Gigabit SFP managed switch, covering areas such as VLAN configuration, Spanning Tree Protocol, and Link Aggregation Control Protocol (LACP) per its short description. No sample objects were provided in this batch, so specific table/object names cannot be cited, but the module is structured around the general "Structure of Layer 2 Network Management Information" framework common to D-Link's xStack/DGS switch line. Its monitoring emphasis is on Layer 2 protocol/software status - VLAN membership and configuration, STP port roles/states, and LACP trunk group membership - rather than raw physical sensors, helping administrators detect misconfigured VLANs, blocked/forwarding STP ports, or degraded LACP bundles. It builds on standard bridge MIB concepts (BRIDGE-MIB/Q-BRIDGE-MIB) while adding D-Link-specific object structuring for the DGS-3420 platform. It is deployed in enterprise wiring-closet and campus network environments using the D-Link DGS-3420-28SC switch. Engineers can download the DGS-3420-28SC-L2MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DGS-3420-28SC-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-3420-28SC 28-port SFP managed switch

Monitoring Examples

No sample objects were supplied for this MIB, so a grounded polling example referencing real object names cannot be constructed; in general use an administrator would poll per-VLAN membership tables, STP port state tables, and LACP aggregation tables typical of this L2 management framework to verify VLAN, spanning-tree, and trunk configuration on the switch.

What Can Be Monitored

  • VLAN configuration/membership
  • spanning tree port state
  • LACP link aggregation 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-Dgs3420-28SC
OIDs

RFC description

D-Link DGS-3420-28SC Layer 2 management MIB for switch configuration including VLAN, STP, MSTP, and connectivity management.

Start monitoring D-Link DGS-3420-28SC 28-port SFP managed 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-3420-28SC-L2MGMT-MIB