DMswitch-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DMswitch-MIB

Organization: DATACOM

Last Updated: 2015-12-10

Category: Technology: Switching/L2, Technology: VLAN

Description: Manages configuration and operational status of DM-series managed Ethernet switches.

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What Is DMswitch-MIB?

DMswitch-MIB is a vendor-specific MIB for managing DM-series managed Ethernet switches, covering per-unit configuration and operational status across the switching platform. It exposes a switchInfoTable with hardware and software inventory per unit, hardware version, boot loader version, firmware version, serial number, and product name, alongside port count and the unit's role in the system (standalone, master, or member in a multi-unit setup). Critically for monitoring, it surfaces swPowerStatus for power supply health and swFirmwareVer/swBootLoaderVer for software version tracking, letting an admin confirm a switch unit is powered correctly and running the expected firmware/bootloader revision. The MIB defines its own notifications (dmSwitchNotifications) and conformance statements, and like most switch vendor MIBs it is used alongside standard IF-MIB/BRIDGE-MIB for interface and bridging statistics that this module does not itself cover. It is deployed in networks using DM-series managed switches where centralized NMS tools track hardware inventory, firmware compliance, and power status across many units. Engineers can download the DMswitch-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DMswitch-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

  • DM-series managed Ethernet switch
  • Datacom DmSwitch series (Brazilian carrier/access switches)

Monitoring Examples

Polling switchInfoTable/switchInfoEntry by swUnitIndex returns swHardwareVer, swBootLoaderVer, swFirmwareVer, swSerialNumber, and swProdName, letting an admin audit firmware version compliance across a fleet of switches and identify units still on an outdated swFirmwareVer. swPowerStatus can be checked to detect a unit reporting a power fault, and swRoleInSystem confirms whether a given unit is acting as master or member, revealing an unexpected role change after a failover. dmSwitchNotifications would fire traps for such status changes so the NMS doesn't need to continuously poll.

What Can Be Monitored

  • firmware/bootloader version per unit
  • hardware version and serial number
  • power supply status
  • switch role in system (master/member)
  • port count per unit
Imported Objects

From DATACOM-SMI

datacomAccessDevicesMIBsOBJECT-IDENTITY

From IF-MIB

InterfaceIndex

From P-BRIDGE-MIB

EnabledStatus

From Q-BRIDGE-MIB

PortList

From SNMPv2-SMI

Counter32
Counter64
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32
enterprises

From SNMPv2-TC

DisplayString
MacAddress
RowStatus
TruthValue

How to Use in IPNetwork Monitor

Example using countHoldPkts OID:

Select a Datacom DmSwitch series 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 countHoldPkts 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. It reports the counter Hold shows the number of dropped packets in a single interface. 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 Counter64-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

Datacom DMswitch management including port, VLAN, and spanning tree configuration.

Start monitoring Datacom DmSwitch series 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 DMswitch-MIB