CISCO-POE-PD-MIB

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Organization: Cisco Systems Inc.

Last Updated: 2004-05-05

Category: Cisco Devices, Hardware and Environment

Description: Manages Power over Ethernet powered device (PD) power negotiation and consumption on Cisco PoE endpoints.

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What Is CISCO-POE-PD-MIB?

CISCO-POE-PD-MIB is a Cisco Systems Inc. proprietary MIB for devices that are Powered Devices (PDs) receiving Power over Ethernet, reporting the power level and source in use. Its objects cover current power level and current power source, and a supported-power-level table (level, supported power in milliwatts, supported power mode). As a status MIB it lets an administrator confirm how much power a PD is drawing and which PoE mode/level it negotiated with its upstream PSE. It is deployed on Cisco devices that operate as PoE-powered end devices. Engineers can download the CISCO-POE-PD-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-POE-PD-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

Cisco Systems PoE-powered devices (PDs)

Monitoring Examples

An administrator checks cpoePdCurrentPowerLevel and cpoePdCurrentPowerSource to confirm a Cisco PoE-powered device negotiated the expected power class.

What Can Be Monitored

negotiated PoE power level and source

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TEXTUAL-CONVENTION

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoPoePdMIB	1.3.6.1.4.1.9.9.414			This MIB is intended for devices powered by external power sources, in particular Power Over Ethernet (PoE or formerly called inline power), to provide power usage configuration and information for NMS. For example, PoE supplies DC power over standard Category 5 unshielded twisted-pair (UTP) cable. Instead of requiring wall power, powered devices such as IP telephones can utilize power provided from power source equipments. By using Cisco Discovery Protocol (CDP), powered devices can negotiated with power source equipment to obtain optimum power supply. GLOSSARY Midspan Injector The midspan PSE sends out a signal tone down one of the unused pairs of the standard Category 5 cable and detects tone on the other unused pair when the PD loops this tone back to it through a loopback transformer. Once the midspan PSE detects this tone, it begins to provide power down the cable using the unused pairs. The midspan PSE provide no physical layer capability. Powered Device ( PD ) These are devices powered by external electrical power sources. They are, for example, IP telephones and wireless Access Points or bridges. Power Source Equipment ( PSE ) These are devices supplying electrical power to other equipments. They are, for example, inline power switches and power patch panels.
cpoePdMIBNotifications	1.3.6.1.4.1.9.9.414.0
cpoePdMIBObjects	1.3.6.1.4.1.9.9.414.1
cpoePdInformation	1.3.6.1.4.1.9.9.414.1.1
U32 cpoePdCurrentPowerLevel	1.3.6.1.4.1.9.9.414.1.1.1	Unsigned32	read-only	This identifies the currently how much power is consummed by the device at which this agent is running. The level shall be one of the cpoePdSupportedPowerLevel in the cpoePdSupportedPowerTable.
CPO cpoePdCurrentPowerSource	1.3.6.1.4.1.9.9.414.1.1.2	CpoePdPowerSourceType	read-only	This is the current power source type obtained from device power source detection.
cpoePdSupportedPowerLevelTable	1.3.6.1.4.1.9.9.414.1.1.3		not-accessible	This table shows all the supported electrical power consumption levels of this agent and the corresponding modes of operation at those power levels. The mode of operation and the device capability changes as the supplied power level varies. The number of supported levels is platform and implementation dependent.
cpoePdSupportedPowerLevelEntry	1.3.6.1.4.1.9.9.414.1.1.3.1		not-accessible	Each entry shows a supported power level and the corresponding mode of operation.
U32 cpoePdSupportedPowerLevel	1.3.6.1.4.1.9.9.414.1.1.3.1.1	Unsigned32	not-accessible	This index uniquely identifies the supported power consumption level.
U32 cpoePdSupportedPower	1.3.6.1.4.1.9.9.414.1.1.3.1.2	Unsigned32	read-only	This is the electrical power consummed by the device operating at this supported power consumption level.
STR cpoePdSupportedPowerMode	1.3.6.1.4.1.9.9.414.1.1.3.1.3	SnmpAdminString	read-only	This is a text string describing the mode of operation or capability of the device at the power consumption level. For example, the comsumption level and corresponding mode should look like these: 1 'Full power mode' 2 'Low power mode - dot11radio 0 disabled' 3 'Low power mode - dot11radio 1 disabled' 4 'Low power mode - dot11 radios disabled'.
cpoePdMIBConformance	1.3.6.1.4.1.9.9.414.2
cpoePdMIBCompliances	1.3.6.1.4.1.9.9.414.2.1
cpoePdMIBCompliance	1.3.6.1.4.1.9.9.414.2.1.1			The compliance statement for the SNMP entities that implement the ciscoPoePdMIB module.
cpoePdMIBGroups	1.3.6.1.4.1.9.9.414.2.2
cpoePdInformationGroup	1.3.6.1.4.1.9.9.414.2.2.1			This collection of objects provide information about the supported electrical power level, current power consumption, and mode of operation of this agent.

RFC description

Monitors power consumption and status of Power over Ethernet (PoE) powered devices like IP phones.

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Download CISCO-POE-PD-MIB

What Is CISCO-POE-PD-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description