DNOS-POWER-ETHERNET-MIB

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Organization: Broadcom Corporation

Last Updated: 2016--0-9-

Category: Technology: PoE, Vendor: Dell/DNOS

Description: Manages Power over Ethernet (PoE/PoE+) port configuration and power monitoring on Dell DNOS switches.

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What Is DNOS-POWER-ETHERNET-MIB?

This is a Dell-specific MIB that augments the standard IETF POWER-ETHERNET-MIB to provide additional Power over Ethernet (PoE/PoE+) hardware reporting on Dell DNOS switches, covering details the base MIB does not expose. It focuses on power sourcing equipment (PSE) status and configuration for ports delivering power to connected devices such as IP phones, cameras, or wireless access points. This is squarely a hardware health monitoring MIB: it supports tracking per-port power delivery, power budget consumption, and PSE hardware status, which are essential for detecting a failing PoE port, an oversubscribed power budget, or a device that unexpectedly stops drawing power. It has an explicit, acknowledged dependency on the IETF POWER-ETHERNET-MIB (RFC 3621), which it extends rather than replaces. It is deployed on Dell PowerSwitch/DNOS switches supplying PoE to edge devices in office or campus networks. Engineers can download the DNOS-POWER-ETHERNET-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DNOS-POWER-ETHERNET-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

Dell PowerSwitch DNOS switch

Monitoring Examples

No specific sample objects were provided for this augmenting MIB; based on its stated purpose, an administrator would combine standard pethPsePortTable objects from POWER-ETHERNET-MIB with this MIB's Dell-specific extensions to monitor actual per-port power draw against the platform's total power budget and detect PSE hardware faults not visible in the base MIB.

What Can Be Monitored

per-port PoE power delivered
PSE power budget utilization
PoE port hardware status
additional Dell-specific PoE diagnostics

Imported Objects

From DELL-REF-MIB

dnOS	OBJECT-IDENTITY

From POWER-ETHERNET-MIB

pethMainPseEntry	OBJECT-TYPE
pethPsePortEntry	OBJECT-TYPE

From SNMPv2-SMI

Gauge32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
fastPathpowerEthernetMIB	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15			This MIB Augments the POWER-ETHERNET-MIB created by the IETF Ethernet Interfaces and Hub MIB Working Group for managing Power Source Equipment (PSE). The objects in this MIB are intended to provide additional objects for reporting information available to the hardware on this platform which are not represented in the draft MIB.
agentPethObjects	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1
agentPethPsePortTable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1		not-accessible	A table of per-port information and configuration objects relating to the power status of each port.
agentPethPsePortEntry	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1		not-accessible	A collection of objects providing additional power information and control parameters for the specified port.
G32 agentPethPowerLimit	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.1	Gauge32	read-write	The configured maximum power this port can provide to an attached device measured in Milliwatts.
G32 agentPethOutputPower	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.2	Gauge32	read-only	The power this port is supplying to an attached device measured in Milliwatts.
G32 agentPethOutputCurrent	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.3	Gauge32	read-only	The current this port is supplying to an attached device measured in Milliamps.
G32 agentPethOutputVolts	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.4	Gauge32	read-only	The voltage this port is supplying to an attached device measured in Volts.
G32 agentPethTemperature	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.5	Gauge32	read-only	The temperature measured at this port of the PoE Controller. It is measured in degree celcius.
INT agentPethPowerLimitType	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.6	INTEGER	read-write	Describes or controls the maximum power that a port can deliver A value of dot3af(1) means that the port power limit is as per the dot3af class of the PD attached. A value of user(2) means that the port power limit is equal to the value specified by agentPethPowerLimit
T/F agentPethHighPowerEnable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.7	TruthValue	read-write	true (1) The PSE port can deliver power up to 32Watts. false(2) The PSE port can deliver power up to 18Watts
INT agentPethPowerDetectionType	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.8	INTEGER	read-write	Describes PD detection mechanism performed by the PSE port. A value of none(0) means no detection is done. A value of legacy(1) means only legacy capacitive detection scheme is used. A value of 4ptdot3afonly(2) means that IEEE 802.3af 4point detection scheme is used. A value of 4ptdot3afandlegacy(3)means that IEEE 802.3af 4point detection scheme is used and when that fails to detect a connected PD, legacity capacitive detection is used. A value of 2ptdot3afonly(4) means that IEEE 802.3af 2point detection scheme is used. A value of 2ptdot3afandlegacy(5)means that IEEE 802.3af 2point detection scheme is used and when that fails to detect a connected PD, legacity capacitive detection is used. The value 'none' can not be forcibly set by the administrator.
INT agentPethFaultStatus	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.9	INTEGER	read-only	Describes the error description when the pse port is in fault status. A value of none(0) specifies that the pse port is not in any error state. A value of mpsAbsent(1) specifies that the pse port has detected and absence of main power supply. A value of short(2) specifies that the pse port has detected a short circuit condition. A value of overload(3) specifies that the pd connected to the pse port had tried to draw more power than permissible by the hardware. A value of powerDenied(4) specifies that the pse port has been denied power because of shortage of power or due to administrative action.
INT agentPethPortReset	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.1.1.10	INTEGER	read-write	A value of reset(1) is used to move the pse port dot3af state to idle. A read on this object will always return the value none(0). The value none(0) can not be forcibly set by the administrtor.
agentPethMainPseObjects	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.2
agentPethMainPseTable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.2.1		not-accessible	A table of objects that display and control attributes of the main power source in a PSE device. Ethernet switches are one example of boxes that would support these objects. Values of all read-write objects in this table are persistent at restart/reboot.
agentPethMainPseEntry	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.2.1.1		not-accessible	A set of objects that display and control the Main power of a PSE.
T/F agentPethMainPseLegacy	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.2.1.1.1	TruthValue	read-write	Enable/Disable Legacy device detection. The value true(1) means legacy devices are detected; the value false(2) means legacy devices are not detected.
agentPethPseTable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.3		not-accessible	A table of per-unit information and configuration objects relating to the power configurtion for the entire pse unit.
agentPethPseEntry	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.3.1		not-accessible	A collection of objects providing additional power information and control parameters for the specified pse unit.
INT agentPethPsePowerManagementMode	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.3.1.1	INTEGER	read-write	Describes or controls the power management algorithm used by the pse to deliver power to the requesting PDsthat a pds. A value of dot3af(1) means that the port power limit is as per the dot3af class of the PD attached. A value of user(2) means that the port power limit is equal to the value specified by agentPethPowerLimit
T/F agentPethPseAutoResetEnable	1.3.6.1.4.1.674.10895.5000.2.6132.1.1.15.1.3.1.2	TruthValue	read-write	true (1) The PSE port is reset with out administrator intervention whenver a fault condition occurs. false(2) Administrator has to reset the pse port whenver a fault condition is detected.

RFC description

Dell/Broadcom Power over Ethernet (PoE) augmentation for port power status and PSE management.

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Download DNOS-POWER-ETHERNET-MIB

What Is DNOS-POWER-ETHERNET-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description