DES3852-SWL3MGMT-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DES3852-SWL3MGMT-MIB

Organization: D-Link Corp.

Last Updated: 2008-05-22

Category: Routing Protocols, Vendor: D-Link

Description: Manages L3 IP routing configuration for D-Link DES-3852 switch.

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What Is DES3852-SWL3MGMT-MIB?

DES3852-SWL3MGMT-MIB is a proprietary D-Link enterprise MIB extending Layer 3 management for the DES-3852 switch, focused specifically on IP multicast routing via PIM (Protocol Independent Multicast). It exposes PIM management group objects, including candidate bootstrap router (Cbsr) information used in PIM-SM's bootstrap mechanism for RP discovery. Its monitoring role is to let an administrator verify that multicast routing is correctly configured and operating, such as confirming the switch's PIM bootstrap router candidacy and RP-set state, which affects whether multicast streams are properly forwarded across the network. It parallels concepts from the standard IETF PIM-MIB but is implemented as D-Link private enterprise objects. It is typically deployed on DES-3852 Layer 3 switches in networks running IP multicast applications such as video distribution. Engineers can download the DES3852-SWL3MGMT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DES3852-SWL3MGMT-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-3852 switch
  • D-Link DES-3852 series L3 switches

Monitoring Examples

An operator would inspect the swL3PimMgmt and swL3PimCbsrInfoMgmt object groups to confirm the switch's PIM bootstrap router candidacy settings and check whether it holds the active bootstrap router role for the PIM domain. If the expected candidate bootstrap router information is missing or inconsistent across switches, multicast group-to-RP mappings can fail, causing multicast streams to silently stop being forwarded. Because only these two top-level object groups were available in the source, more granular per-interface PIM counters are not detailed here.

What Can Be Monitored

  • PIM bootstrap router candidacy
  • PIM candidate RP information
  • multicast routing configuration state
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
PhysAddress
RowStatus
TruthValue

From SW3800PRIMGMT-MIB

des3852OBJECT-IDENTITY

How to Use in IPNetwork Monitor

Example using swL3ospfVirtIfEvents OID:

Select a D-Link DES-3852 switch (L3/PIM multicast) 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 DES3852 Layer 3 network management with RIP, OSPF, IP routing, and relay management.

Start monitoring D-Link DES-3852 switch (L3/PIM multicast) 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 DES3852-SWL3MGMT-MIB