DGS3000-24TC-L3MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DGS3000-24TC-L3MGMT-MIB

Last Updated: 2012-05-23

Category: Technology: Routing/L3, Vendor: D-Link

Description: L3 management MIB for D-Link DGS-3000-24TC switch covering routing, OSPF, and Layer 3 management features.

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What Is DGS3000-24TC-L3MGMT-MIB?

This proprietary D-Link MIB defines Layer 3 network management information for the DGS-3000-24TC, a 24-port Layer 3 switch, covering routing-protocol configuration including DVMRP multicast routing and OSPF, plus general L3 management such as route preference. Like its DGS-3000-10TC sibling, it exposes routing-plane configuration and operational-status data rather than basic interface counters. Its monitoring value comes from surfacing routing-protocol health at the software level: DVMRP neighbor timeout and bad-packet/bad-route counters flag multicast-routing problems, while OSPF ECMP objects reveal load-balancing configuration, complementing simple interface up/down status with actual routing-behavior visibility. It complements standard routing MIBs such as OSPF-MIB and DVMRP conventions, layering D-Link-specific extensions on top. It is deployed on DGS-3000-24TC switches in routed campus environments needing multicast and OSPF routing across VLANs. Engineers can download the DGS3000-24TC-L3MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DGS3000-24TC-L3MGMT-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-3000-24TC Layer 3 switch

Monitoring Examples

An administrator would poll swL3dvmrpInterfaceTable entries such as swL3dvmrpInterfaceLocalAddress, swL3dvmrpInterfaceProbe, and swL3dvmrpInterfaceNbrTimeout to confirm DVMRP neighbor relationships remain established, and watch swL3dvmrpInterfaceRcvBadPkts/swL3dvmrpInterfaceRcvBadRoutes for a rising count that would indicate a misbehaving multicast peer. Checking swL3OspfECMPCrcHigh and swL3OspfECMPTCPorUDPport alongside swL3RoutePreference would reveal whether OSPF ECMP load balancing and routing preference are functioning as configured.

What Can Be Monitored

  • DVMRP interface status and metrics
  • DVMRP bad packet/route counters
  • OSPF ECMP configuration
  • route preference settings
  • L3 routing interface status
Imported Objects

From IF-MIB

InterfaceIndex

From OSPF-MIB

AreaID
DesignatedRouterPriority
HelloRange
Metric
PositiveInteger
RouterID
Status
TOSType
UpToMaxAge

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
MacAddress
PhysAddress
RowStatus
TimeStamp
TruthValue

From SWPRIMGMT-DGS3000-MIB

dgs3000-24-tcax

How to Use in IPNetwork Monitor

Example using swL3ospfVirtIfEvents OID:

Select a D-Link DGS-3000-24TC Layer 3 switch as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type swL3ospfVirtIfEvents into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of state changes or error events on this Virtual Link. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

D-Link DGS3000-24TC Layer 3 network management with routing and advanced IP features.

Start monitoring D-Link DGS-3000-24TC Layer 3 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 DGS3000-24TC-L3MGMT-MIB