DGS3120-24SC-L2MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DGS3120-24SC-L2MGMT-MIB

Organization: D-Link Corp.

Last Updated: 2010-03-03

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

Description: L2 management MIB for D-Link DGS-3120-24SC 24-port SFP switch covering VLANs, STP, and L2 management features.

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What Is DGS3120-24SC-L2MGMT-MIB?

DGS3120-24SC-L2MGMT-MIB is a vendor-specific D-Link MIB for the DGS-3120-24SC, a 24-port SFP Layer 2 managed switch, structuring the Layer 2 network management information supported on that product. It groups the switch's Layer 2 feature set, including VLAN configuration and Spanning Tree Protocol (STP) state, under this device's management tree. Its monitoring value centers on software/configuration status of L2 features -- VLAN membership and STP port/topology state -- rather than raw hardware sensors, though as an umbrella MIB it typically ties into the switch's broader chassis/environmental MIBs for that. No sample objects were provided, but as an L2-structure MIB it likely depends on or parallels standard IEEE 802.1Q (VLAN) and 802.1D/w/s (STP) conventions. It is deployed by network administrators managing D-Link DGS-3120-24SC fiber switches, typically in metro-Ethernet or enterprise fiber-aggregation deployments. Engineers can download the DGS3120-24SC-L2MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DGS3120-24SC-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-3120-24SC 24-port SFP switch

Monitoring Examples

Sample objects were not enumerated for this module, but based on its description an administrator would use it to poll VLAN membership tables and STP port state (e.g., forwarding, blocking, listening) on the DGS-3120-24SC to confirm the switch's Layer 2 topology is stable. Repeated STP state transitions on a port would reveal a flapping uplink or a loop condition in the fiber-aggregation network.

What Can Be Monitored

  • VLAN configuration/membership
  • spanning tree protocol port state
  • Layer 2 topology status
Imported Objects

From DLINK-ID-REC-MIB

AgentNotifyLevel

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 SWDGS3120PRIMGMT-MIB

dlink-Dgs3120Proj-Dgs3120-24SC
OIDs

RFC description

D-Link DGS-3120-24SC layer 2 management MIB for switching, VLAN, multicast, and port configuration.

Start monitoring D-Link DGS-3120-24SC 24-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 DGS3120-24SC-L2MGMT-MIB