DLINKSW-ENTITY-EXT-MIB

All MIBs › DLINKSW-ENTITY-EXT-MIB

Organization: D-Link Corp.

Last Updated: 2013-09-06

Category: Hardware Inventory

Description: Adds D-Link-specific attributes for hardware components as an extension of the entity MIB.

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What Is DLINKSW-ENTITY-EXT-MIB?

This is a D-Link proprietary MIB module extending the standard ENTITY-MIB with vendor-specific physical component attributes, and it explicitly provides monitoring of alarms generated by physical entities including temperature sensors, fans, and power supplies. It exposes objects that identify hardware components and report their alarm/status conditions, layered on top of the standard entPhysicalTable framework. This is directly a hardware-health monitoring MIB: administrators use it to watch temperature sensor readings and alarm thresholds, fan operational alarms, and power supply alarm conditions, giving early warning of thermal stress, fan failure, or power issues before they cause an outage. It explicitly depends on the standard IETF ENTITY-MIB (RFC 6933) for its base physical entity indexing, extending rather than replacing it. It is deployed on D-Link switches across enterprise and data center environments needing granular physical-component health alerting. Network engineers evaluating or troubleshooting this functionality can download the DLINKSW-ENTITY-EXT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DLINKSW-ENTITY-EXT-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 managed switches (entity/hardware alarm extension)

Monitoring Examples

An administrator would poll this MIB's temperature sensor alarm objects alongside the standard entPhysicalTable to correlate a triggered high-temperature alarm with a specific physical component (e.g., a CPU or PSU sensor), enabling rapid identification of a cooling problem. Fan and power supply alarm status objects would similarly be checked to detect a failed fan or degraded power feed before it escalates, with entPhysicalTable entries providing the human-readable component description for the alert.

What Can Be Monitored

temperature sensor alarms
fan status alarms
power supply status alarms
physical component identification

Imported Objects

From DLINK-ID-REC-MIB

dlinkIndustrialCommon

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString

How to Use in IPNetwork Monitor

Example using dEntityExtEnvTempCurrent OID:

Select a D-Link managed 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 dEntityExtEnvTempCurrent 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. This object indicates the current measurement of the testpoint. 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 the reported value exceeds the level expected for healthy operation, since sustained high temperature often precedes thermal shutdown or hardware degradation. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
dlinkSwEntityExtMIB	1.3.6.1.4.1.171.26.5			This MIB module provides essential information about the system and defines the managed objects that support the monitoring of alarms generated by physical entities, including temperature sensors, fans and power supplies.
dEntityExtNotifications	1.3.6.1.4.1.171.26.5.0
NTF dEntityExtFanStatusChg	1.3.6.1.4.1.171.26.5.0.1			This trap indicates a fan fails (dEntityExtEnvFanStatus is 'fault') or recovers (dEntityExtEnvFanStatus is 'ok').
NTF dEntityExtThermalStatusChg	1.3.6.1.4.1.171.26.5.0.2			This trap indicates a thermal alarms (dEntityExtEnvTempStatus is 'abnormal') or recovers (dEntityExtEnvTempStatus is 'ok').
NTF dEntityExtPowerStatusChg	1.3.6.1.4.1.171.26.5.0.3			This trap indicates a power module fails, recovers or is removed.
NTF dEntityExtAirFlowChg	1.3.6.1.4.1.171.26.5.0.4			This trap is triggered when the air flow status is changed from 'ok' to 'abnormal' and vice versa. dEntityExtEnvAirFlowStatus indicates the current (new) fan air flow state.
NTF dEntityExtFactoryResetButton	1.3.6.1.4.1.171.26.5.0.5			This trap is triggered when the factory reset button was pressed.
dEntityExtObjects	1.3.6.1.4.1.171.26.5.1
dEntityExtEnvObjects	1.3.6.1.4.1.171.26.5.1.1
dEntityExtEnvTempTable	1.3.6.1.4.1.171.26.5.1.1.1		not-accessible	The table consists of a list of temperature information.
dEntityExtEnvTempEntry	1.3.6.1.4.1.171.26.5.1.1.1.1		not-accessible	An entry represents the temperature status of a testpoint.
U32 dEntityExtEnvTempUnitId	1.3.6.1.4.1.171.26.5.1.1.1.1.1	Unsigned32	not-accessible	This object indicates the unit (stacking device) or slot (chassis device) ID at which the testpoint is located.
I32 dEntityExtEnvTempIndex	1.3.6.1.4.1.171.26.5.1.1.1.1.2	Integer32	not-accessible	This object is used to uniquely identify the testpoint within a unit/slot. This index is for SNMP purposes only, and has no intrinsic meaning.
STR dEntityExtEnvTempDescr	1.3.6.1.4.1.171.26.5.1.1.1.1.3	DisplayString	read-only	This object provides human-sensible identification for the testpoint. e.g. 'Inlet', 'Center', 'Outlet'.
I32 dEntityExtEnvTempCurrentEx	1.3.6.1.4.1.171.26.5.1.1.1.1.4	Integer32	read-only	This object indicates the current measurement of the testpoint.
I32 dEntityExtEnvTempThresholdLow	1.3.6.1.4.1.171.26.5.1.1.1.1.5	Integer32	read-write	The object indicates the minimum acceptable reading of the testpoint in degrees Celsius.
I32 dEntityExtEnvTempThresholdHigh	1.3.6.1.4.1.171.26.5.1.1.1.1.6	Integer32	read-write	The object indicates the maximum acceptable reading of the testpoint in degrees Celsius.
INT dEntityExtEnvTempStatus	1.3.6.1.4.1.171.26.5.1.1.1.1.7	INTEGER	read-only	The object indicates the current temperature is over the thresholds or not. 'abnormal' indicates the temperature is over the thresholds. 'ok' indicates the temperature is not over the thresholds.
dEntityExtEnvFanTable	1.3.6.1.4.1.171.26.5.1.1.2		not-accessible	The table is used to display the status of fans.
dEntityExtEnvFanEntry	1.3.6.1.4.1.171.26.5.1.1.2.1		not-accessible	An entry represents a fan status.
U32 dEntityExtEnvFanUnitId	1.3.6.1.4.1.171.26.5.1.1.2.1.1	Unsigned32	not-accessible	This object indicates the unit (stacking device) or slot (chassis device) ID at which the fan is located.
I32 dEntityExtEnvFanIndex	1.3.6.1.4.1.171.26.5.1.1.2.1.2	Integer32	not-accessible	This object is used to uniquely identify the fan within a unit/slot. This index is for SNMP purposes only, and has no intrinsic meaning.
STR dEntityExtEnvFanDescr	1.3.6.1.4.1.171.26.5.1.1.2.1.3	DisplayString	read-only	This object provides human-sensible identification for the fan. e.g. 'Left 1' for the first fan on the left.
INT dEntityExtEnvFanStatus	1.3.6.1.4.1.171.26.5.1.1.2.1.4	INTEGER	read-only	This object indicates the fan status.
dEntityExtEnvPowerTable	1.3.6.1.4.1.171.26.5.1.1.3		not-accessible	The table is used to display the status of the power modules.
dEntityExtEnvPowerEntry	1.3.6.1.4.1.171.26.5.1.1.3.1		not-accessible	An entry contains the information of a power module.
U32 dEntityExtEnvPowerUnitId	1.3.6.1.4.1.171.26.5.1.1.3.1.1	Unsigned32	not-accessible	This object indicates the unit (stacking device) or slot (chassis device) ID at which the power module is located.
U32 dEntityExtEnvPowerIndex	1.3.6.1.4.1.171.26.5.1.1.3.1.2	Unsigned32	not-accessible	This object indicates the ID of the power module. This object is used to uniquely identify the power module. This index is for SNMP purposes only, and has no intrinsic meaning.
STR dEntityExtEnvPowerDescr	1.3.6.1.4.1.171.26.5.1.1.3.1.3	DisplayString	read-only	This object provides human-sensible information for the power module. e.g. '#1 (internal)', '#2 (external)'.
U32 dEntityExtEnvPowerUsedPower	1.3.6.1.4.1.171.26.5.1.1.3.1.4	Unsigned32	read-only	This object indicates the amount of the power that has been allocated.
U32 dEntityExtEnvPowerMaxPower	1.3.6.1.4.1.171.26.5.1.1.3.1.5	Unsigned32	read-only	This object indicates maximum power which the power module can supply.
INT dEntityExtEnvPowerStatus	1.3.6.1.4.1.171.26.5.1.1.3.1.6	INTEGER	read-only	This object indicates the status of the power.
dEntityExtEnvAirFlowTable	1.3.6.1.4.1.171.26.5.1.1.4		not-accessible	The table is used to display the status of the air flow function.
dEntityExtEnvAirFlowEntry	1.3.6.1.4.1.171.26.5.1.1.4.1		not-accessible	An entry contains the information of the air flow function.
U32 dEntityExtEnvAirFlowUnitId	1.3.6.1.4.1.171.26.5.1.1.4.1.1	Unsigned32	not-accessible	This object indicates the unit (stacking device) or slot (chassis device) ID at which the air flow module is located.
INT dEntityExtEnvAirFlowStatus	1.3.6.1.4.1.171.26.5.1.1.4.1.2	INTEGER	read-only	This object indicates the status of the air flow. The fans' air flow direction must match the system's air flow direction to form an integrated air flow. For example: In DXS-3600, the normal fans' air flow direction must match the power fan's air flow direction. The power fan blow the cold air from outside to inside, all the normal fans must blow the hot air from inside to outside. Or the power fan blow the hot air from inside to outside, all the normal fans must blow the cold air from outside to inside. If one or more fans' air flow direction does not match the system's air flow direction, it will form an abnormal air flow. Then this log message will be triggered. ok(1) : A recover event indicates the air flow back to normal. abnormal(2): An alarm event indicates the air flow detects abnormal.
dEntityExtEnvTrap	1.3.6.1.4.1.171.26.5.1.2
BIT dEntityExtEnvNotifyEnable	1.3.6.1.4.1.171.26.5.1.2.1	Bits	read-write	This object indicates whether a specified notification is enabled or not. If a bit corresponding to a notification is set to 1, then the specified notification can be generated. fan(0) - fan trap state for warning fan event (fan failed or fan recover). power(1) - power trap state for warning power event (power failure or power recovery). temperature(2) - temperature trap state for warning temperature event (temperature exceeds the thresholds or temperature recover).
dEntityExtUnitTable	1.3.6.1.4.1.171.26.5.1.3		not-accessible	The table is used to display information of units.
dEntityExtUnitEntry	1.3.6.1.4.1.171.26.5.1.3.1		not-accessible	An entry contains essential information of a unit.
U32 dEntityExtUnitIndex	1.3.6.1.4.1.171.26.5.1.3.1.1	Unsigned32	not-accessible	This object indicates the unit (stacking device) or slot (chassis device) ID.
INT dEntityExtUnitStatus	1.3.6.1.4.1.171.26.5.1.3.1.2	INTEGER	read-only	This object represents the status of the unit: ok(1) - This indicates the unit is okay. failed(2) - This indicates the unit fails due to some reason. empty(3) - This indicates that the unit is provisioned but currently not installed.
U32 dEntityExtUnitUpTime	1.3.6.1.4.1.171.26.5.1.3.1.3	Unsigned32	read-only	This object provides the up time in units of seconds for the unit since it was last re-initialized.
dEntityExtMemoryUtilTable	1.3.6.1.4.1.171.26.5.1.4		not-accessible	The table is used to display memory utilization information.
dEntityExtMemoryUtilEntry	1.3.6.1.4.1.171.26.5.1.4.1		not-accessible	An entry contains memory utilization information.
I32 dEntityExtMemUtilUnitId	1.3.6.1.4.1.171.26.5.1.4.1.1	Integer32	not-accessible	This object indicates the unit (stacking device) or slot (chassis device) ID.
INT dEntityExtMemUtilType	1.3.6.1.4.1.171.26.5.1.4.1.2	INTEGER	not-accessible	The object indicates the memory type of the entry.
U32 dEntityExtMemUtilTotal	1.3.6.1.4.1.171.26.5.1.4.1.3	Unsigned32	read-only	This object indicates the total memory size of the entry.
U32 dEntityExtMemUtilUsed	1.3.6.1.4.1.171.26.5.1.4.1.4	Unsigned32	read-only	This object indicates the used memory size of the entry.
U32 dEntityExtMemUtilFree	1.3.6.1.4.1.171.26.5.1.4.1.5	Unsigned32	read-only	This object indicates the free memory size of the entry.
dEntityExtCpuUtilTable	1.3.6.1.4.1.171.26.5.1.7		not-accessible	The table is used to display CPU utilization information.
dEntityExtCpuUtilEntry	1.3.6.1.4.1.171.26.5.1.7.1		not-accessible	An entry contains CPU information.
U32 dEntityExtCpuUtilUnitId	1.3.6.1.4.1.171.26.5.1.7.1.1	Unsigned32	not-accessible	This object indicates the unit (stacking device) or slot (chassis device) ID.
U32 dEntityExtCpuUtilCpuID	1.3.6.1.4.1.171.26.5.1.7.1.2	Unsigned32	not-accessible	This object is used to uniquely identify the CPU within a unit (multiprocessing system).
U32 dEntityExtCpuUtilFiveSeconds	1.3.6.1.4.1.171.26.5.1.7.1.3	Unsigned32	read-only	This objects indicates the overall CPU busy percentage in the last 5 second period. The value will be between 0% (idle) and 100% (very busy).
U32 dEntityExtCpuUtilOneMinute	1.3.6.1.4.1.171.26.5.1.7.1.4	Unsigned32	read-only	This objects indicates the overall CPU busy percentage in the last 1 minute period. The value will be between 0% (idle) and 100% (very busy).
U32 dEntityExtCpuUtilFiveMinutes	1.3.6.1.4.1.171.26.5.1.7.1.5	Unsigned32	read-only	This objects indicates the overall CPU busy percentage in the last 5 minute period. The value will be between 0% (idle) and 100% (very busy).
dEntityExtVersionTable	1.3.6.1.4.1.171.26.5.1.8		not-accessible	The table is used to display version information of units.
dEntityExtVersionEntry	1.3.6.1.4.1.171.26.5.1.8.1		not-accessible	An entry contains version information of a unit.
U32 dEntityExtVersionUnitId	1.3.6.1.4.1.171.26.5.1.8.1.1	Unsigned32	not-accessible	This object indicates the unit (stacking device) or slot (chassis device) ID.
STR dEntityExtVersionBootloader	1.3.6.1.4.1.171.26.5.1.8.1.2	DisplayString	read-only	This object indicates the bootloader version of the unit.
STR dEntityExtVersionRuntime	1.3.6.1.4.1.171.26.5.1.8.1.3	DisplayString	read-only	This object indicates the firmware version of one unit.
dEntityExtConformance	1.3.6.1.4.1.171.26.5.2
dEntityExtMIBCompliances	1.3.6.1.4.1.171.26.5.2.1
dEntityExtCompliance	1.3.6.1.4.1.171.26.5.2.1.1			The compliance statement for entities which implement the DLINKSW-ENTITY-EXT-MIB.
dEntityExtMIBGroups	1.3.6.1.4.1.171.26.5.2.2
dEntityExtTempGroup	1.3.6.1.4.1.171.26.5.2.2.1			A collection of objects provides information of the system temperature.
dEntityExtFanGroup	1.3.6.1.4.1.171.26.5.2.2.2			A collection of objects providing informations of fans.
dEntityExtPowerGroup	1.3.6.1.4.1.171.26.5.2.2.3			A collection of objects providing information of power modules.
dEntityExtSystemInfoGroup	1.3.6.1.4.1.171.26.5.2.2.4			A collection of objects provides information of the system temperature.
dEntityExtGenericNotifInfoGroup	1.3.6.1.4.1.171.26.5.2.2.5			A collection of objects provides generic information for binding variables of notification.
dEntityExtFanNotifGroup	1.3.6.1.4.1.171.26.5.2.2.6			A collection of notifications for indicating the status change of fans.
dEntityExtThermalNotifGroup	1.3.6.1.4.1.171.26.5.2.2.7			A collection of notifications for indicating the status change of thermals.
dEntityExtPowerNotifGroup	1.3.6.1.4.1.171.26.5.2.2.8			A collection of notifications for indicating the status change of power module.
dEntityExtAirFlowNotifGroup	1.3.6.1.4.1.171.26.5.2.2.9			A collection of notifications for indicating the status change of the air flow.
dEntityExtFactoryResetButtonNotifGroup	1.3.6.1.4.1.171.26.5.2.2.10			A collection of notifications for indicating the factory reset button.

RFC description

Extends entity MIB with D-Link-specific hardware component attributes.

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Download DLINKSW-ENTITY-EXT-MIB