DGS-3420-26SC-L2MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DGS-3420-26SC-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-3420-26SC 26-port SFP switch covering VLANs, STP, LACP, and L2 management features.

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What Is DGS-3420-26SC-L2MGMT-MIB?

DGS-3420-26SC-L2MGMT-MIB is a D-Link vendor-specific MIB for the DGS-3420-26SC, a 26-port SFP Gigabit Ethernet switch, covering Layer 2 management features. It falls into the switching/configuration-management category, structuring management information for VLANs, Spanning Tree Protocol (STP), Link Aggregation Control Protocol (LACP), and other Layer 2 features on the switch. Its monitoring value is on the software/configuration-status side of the device — confirming VLAN membership and trunking are set up correctly, STP port states/topology are stable (not repeatedly flapping between blocking and forwarding), and LACP aggregate links are up with all expected member ports active — which indirectly reflects the switch's operational health. It is a vendor-specific module layered on top of D-Link's broader enterprise MIB structure, and conceptually parallels the standard BRIDGE-MIB/dot1dStp objects it manages similarly to. It is typically deployed on D-Link DGS-3420-26SC switches in SMB/enterprise wiring-closet or aggregation-layer deployments needing L2 feature monitoring. Network engineers evaluating or troubleshooting this functionality can download the DGS-3420-26SC-L2MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DGS-3420-26SC-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-3420-26SC 26-port SFP switch

Monitoring Examples

No specific sample object names were provided for this module, so exact identifiers cannot be honestly cited; based on its description, an operator would be expected to poll VLAN membership tables, per-port STP state objects, and LACP aggregation-group status to catch an unexpected STP topology change or a LACP link with fewer active member ports than configured.

What Can Be Monitored

  • VLAN configuration/membership
  • STP port state/topology
  • LACP aggregation status
  • L2 feature configuration 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-Dgs3420-26SC
OIDs

RFC description

D-Link DGS-3420 series managed switch MIB defining Layer 2 management objects for the 26-port gigabit stackable switch; vendor-specific.

Start monitoring D-Link DGS-3420-26SC 26-port SFP 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-3420-26SC-L2MGMT-MIB