DES3016-L2MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DES3016-L2MGMT-MIB

Organization: D-Link, Inc.

Last Updated: 2000-07-15

Description: Layer 2 management MIB for D-Link DES-3016 switch covering STP, IGMP, port mirroring, QoS scheduling, link aggregation, and loop detection

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What Is DES3016-L2MGMT-MIB?

DES3016-L2MGMT-MIB is the Layer 2 management MIB for the D-Link DES-3016 switch, covering a broad set of switching features including Spanning Tree Protocol (STP), IGMP (multicast) snooping, port mirroring, QoS scheduling, link aggregation (trunking), and loop detection. It exposes configuration and status objects for each of these subsystems, letting administrators both configure and verify the switch's Layer 2 forwarding behavior. For status monitoring it is particularly useful for confirming STP port states to catch topology changes or blocked/forwarding transitions, trunk/link-aggregation member status to detect a failed trunk member, and loop-detection alarms to catch network loops causing broadcast storms, alongside IGMP group membership for multicast traffic health. It is a D-Link enterprise-specific MIB but conceptually builds on standard bridging (802.1D/802.1Q) and IGMP snooping concepts, and is typically used alongside standard BRIDGE-MIB/IF-MIB for complete switch visibility. It is deployed in small-to-midsize network environments using D-Link DES-3016 switches where administrators need Layer 2 redundancy, multicast, and QoS features monitored and managed via SNMP, and network staff can download the DES3016-L2MGMT-MIB file to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DES3016-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 DES-3016 switch

Monitoring Examples

An administrator would poll STP port state objects to confirm ports are correctly in forwarding or blocking state, and check link-aggregation/trunk membership tables to verify all expected physical ports are active members of a given trunk group. Loop-detection status objects would be monitored to catch an active loop condition, which typically manifests as a sudden broadcast/multicast storm alert. IGMP snooping group membership tables would be checked to confirm multicast streams are being correctly forwarded only to subscribed ports rather than flooded.

What Can Be Monitored

  • spanning tree port state
  • link aggregation/trunk member status
  • loop detection alarms
  • IGMP snooping group membership
  • port mirroring configuration
  • QoS scheduling configuration
Imported Objects

From DLINK-SWPRIMGMT-MIB

des3016OBJECT-IDENTITY

From RFC1155-SMI

IpAddress

From RFC1213-MIB

DisplayString

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using swL2CPUutilizationIn5sec OID:

Select a D-Link DES-3016 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 swL2CPUutilizationIn5sec into the Find box to locate it in the OID tree, then select it and click OK. It reports the time scale is 5 seconds.The value will be between 0%(idle) and 100% (very busy). 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 an Integer32-type OID, Value bounds is the most useful condition here — trigger an alert if utilization exceeds 85%, a common warning threshold before sustained high load affects performance. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

D-Link DES3016 Layer 2 switch management with trunking, IGMP, and link aggregation features.

Start monitoring D-Link DES-3016 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 DES3016-L2MGMT-MIB