DGS-3420-52T-L2MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DGS-3420-52T-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-3420-52T 52-port switch covering VLANs, STP, link aggregation, and L2 management.

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

DGS-3420-52T-L2MGMT-MIB is a D-Link proprietary MIB covering Layer 2 network management for the DGS-3420-52T 52-port Gigabit switch, encompassing VLAN configuration, Spanning Tree Protocol state, and link aggregation management. It exposes configuration and state objects that determine VLAN membership, STP port roles/states, and aggregated link groups across the switch's 52 ports, following the naming convention shared with other D-Link L2MGMT MIBs. Its monitoring value is in confirming the software-level correctness of Layer 2 switching behavior, such as detecting blocked STP ports or misconfigured link aggregation groups, rather than reporting hardware sensors directly. It parallels IEEE 802.1Q (VLANs), IEEE 802.1D/802.1w (spanning tree), and IEEE 802.3ad/802.1AX (link aggregation) standards even though it is D-Link's own proprietary implementation. It is deployed where the DGS-3420-52T switch serves as an access or aggregation switch requiring VLAN segmentation, loop prevention, and trunked uplinks. Engineers can download the DGS-3420-52T-L2MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DGS-3420-52T-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-3420-52T Gigabit switch

Monitoring Examples

No sample objects were provided for this MIB, so a concrete object-level scenario cannot be honestly constructed from the available data. Based on its stated Layer 2 management purpose and D-Link's consistent naming pattern across sibling MIBs, an administrator would expect to poll VLAN membership tables, per-port STP state objects, and link aggregation group tables to confirm forwarding topology and trunk status. Verifying the actual object names would require inspecting the MIB source directly.

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-Dgs3420-52T
OIDs

RFC description

D-Link management MIB for DGS-3420-52T Layer 2 switch; monitors interfaces, VLANs, port security, and spanning tree on this specific product model.

Start monitoring D-Link DGS-3420-52T Gigabit 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-3420-52T-L2MGMT-MIB