CUMULUS-POE-MIB

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Organization: Cumulus Networks

Last Updated: 2016-07-12

Category: Net-SNMP and Linux, Vendor: Cumulus Networks, Wireless and WLAN

Description: Manages Power over Ethernet port configuration, power allocation, and PD detection on Cumulus Linux switches.

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What Is CUMULUS-POE-MIB?

CUMULUS-POE-MIB is a Cumulus Networks proprietary MIB exposing the values from the Power over Ethernet (POE) display/configuration tool (poectl) via SNMP. Its objects cover total system/used/available power, last-update time, and a PoE-objects table (port name, priority, type, status, class, four-pair-mode-enabled flag, voltage, current, power, max/allocated power, LLDP-requested/allocated power). As a performance/status MIB it lets an administrator confirm PoE power budget and per-port power draw on a Cumulus Networks switch. It is deployed on Cumulus Networks switches (Power over Ethernet). Engineers can download the CUMULUS-POE-MIB file directly to load it into their MIB browser.

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

Cumulus Networks switches (Power over Ethernet)

Monitoring Examples

An administrator monitors poeTotalAvailablePower and portAllocatedPower to confirm remaining PoE budget before adding another powered device on a Cumulus Networks switch.

What Can Be Monitored

PoE power budget and per-port power draw

Imported Objects

From CUMULUS-SNMP-MIB

cumulusMib

MODULE-IDENTITY

From IF-MIB

ifIndex

OBJECT-TYPE

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION
TimeStamp

OIDs

OID symbolic	OID numeric	Type	Access	Description
poeMIBObjects	1.3.6.1.4.1.40310.3			Cumulus Networks Power Over Ethernet tables of the Cumulus enterprise MIB tree. These table values come from the Power Over Ethernet (POE) display and configuration tool (poectl).
poeSystemValues	1.3.6.1.4.1.40310.3.1
MIL poeTotalSystemPower	1.3.6.1.4.1.40310.3.1.1	MilliValue	read-only	The total power available to the system, shown with 3 decimal place of precision (milliwatts). Dividing this value by 1000 returns the number of watts. For example, a value of 730400 is equivalent to 730.4 watts.
MIL poeTotalUsedPower	1.3.6.1.4.1.40310.3.1.2	MilliValue	read-only	The total power USED by ports in the system, shown with 3 decimal places of precision (milliwatts). For example, an integer value of 24500 is equivalent to 24.5 Watts.
MIL poeTotalAvailablePower	1.3.6.1.4.1.40310.3.1.3	MilliValue	read-only	The total UNUSED and available power for the system in the common pool for new devices, shown with 3 decimal places of precision (milliwatts). For example, an integer value of 706300 is equivalent 706.3 Watts.
TIM poeLastUpdateTime	1.3.6.1.4.1.40310.3.1.4	TimeStamp	read-only	The system uptime timestamp when the objects in this MIB were last updated. The default for the update period is every 300 seconds or 5 minutes.
poeObjectsTable	1.3.6.1.4.1.40310.3.2		not-accessible	This table displays POE current, voltage, type and other attributes for each port.
poeObjectsEntry	1.3.6.1.4.1.40310.3.2.1		not-accessible	An entry containing POE attributes (indexed by ifIndex).
STR portName	1.3.6.1.4.1.40310.3.2.1.1	DisplayString	read-only	The textual port name used by the system (such as swp1).
INT portPriority	1.3.6.1.4.1.40310.3.2.1.2	INTEGER	read-only	The portPriority is an integer value that determine which ports should be shut down if the system is in a power limited situation. Ports with low priority will get disconnected first, followed by high priority, then critical ports. If multiple ports have the same priority setting, the port with the lower port number is considered to have the higher priority.
INT portType	1.3.6.1.4.1.40310.3.2.1.3	INTEGER	read-only	The portType represents the type of DC power the system is supplying to this port. POE is designated IEEE802.3af (2) and POE+ is designated IEEE802.3at (3). UPOE is designated as high power (5). Ports desigated as IEEE802.3afat (7) can handle either POE and POE+.
INT portStatus	1.3.6.1.4.1.40310.3.2.1.4	INTEGER	read-only	The portStatus represents the current status of the port.
INT portClass	1.3.6.1.4.1.40310.3.2.1.5	INTEGER	read-only	The portClass represents the standard class of the port shown as follows: Class usage Class current Power range Class description [mA] [Watt] ==================================================================== 0 Default 0-4 0.44-12.94 Class unimplemented 1 Optional 9-12 0.44-3.84 Very Low power 2 Optional 17-20 3.84-6.49 Low power 3 Optional 26-30 6.49-12.95 Mid power 4 Valid for 36-44 12.95-25.50 High power Class 4 for 802.3at(Type 2) devices and not allowed for 802.3af devices. Note that a portClass of Default can also exist if a portStatus is not connected.
INT portFourPairModeEnabled	1.3.6.1.4.1.40310.3.2.1.6	INTEGER	read-only	This object represents whether 4 Pair PoE mode is enabled or disabled for the device on this port. An integer value of 1 means it is enabled (true) and operating in 4 Pair PoE mode and a value of 2 means it is disabled (false) and the port is operating in 2 Pair PoE mode.
MIL portVoltage	1.3.6.1.4.1.40310.3.2.1.7	MilliValue	read-only	The portVoltage represents the port voltage in millivolts. An integer like 50400 should be divided by 1000 for a value of 50.4 Volts.
MIL portCurrent	1.3.6.1.4.1.40310.3.2.1.8	MilliValue	read-only	The portCurrent represents the port current in milliamps. An integer like 50400 should be divided by 1000 for a value of 50.4 Amps.
MIL portPower	1.3.6.1.4.1.40310.3.2.1.9	MilliValue	read-only	The portPower represents the port power usage in milliwatts. An integer like 50400 should be divided by 1000 for a value of 50.4 Watts.
MIL portMaxPower	1.3.6.1.4.1.40310.3.2.1.10	MilliValue	read-only	The portMaxPower represents the maximum port power available and is measured in milliwatts. An integer like 50400 should be divided by 1000 for a value of 50.4 Watts.
MIL portAllocatedPower	1.3.6.1.4.1.40310.3.2.1.11	MilliValue	read-only	The portAllocatedPower represents the power allocated to the port regardless of LLDP for the device in milliwatts.
MIL lldpRequestedPower	1.3.6.1.4.1.40310.3.2.1.12	MilliValue	read-only	The lldpRequestedPower is either blank or the number of milliwatts requested for the device via LLDP.
MIL lldpAllocatedPower	1.3.6.1.4.1.40310.3.2.1.13	MilliValue	read-only	The lldpAllocatedPower is either blank or the number of milliwatts allocated for the device via LLDP.

RFC description

Monitors power-over-ethernet consumption and availability on Cumulus Linux network switches.

Start monitoring Cumulus Networks switch (Power over Ethernet) 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 CUMULUS-POE-MIB

What Is CUMULUS-POE-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description