Documentation forNetwork Performance Monitor

Interface Properties

The following interface properties, listed in variable format, are currently defined and available in NPM:

Interface Variable

Description

${AdminStatus}

Numeric administrative status of interface. For more information, see "Node Status Variables" in the SolarWinds Network Performance Monitor Administrator Guide.

${AdminStatusLED}

Filename of current interface administrative status icon

${AvgSignalNoise}

Average signal to noise ratio, in 0.1db, over last polling interval

${Caption}

User friendly description of interface combining name with other identifying information

${CodewordsCorrected}

Total correctable codewords received on interface for all frames received

${CodewordsUnCorrectable}

Total uncorrectable codewords received on interface for all frames received

${CodewordsUnerrored}

Total unerrored codewords received on interface for all frames received

${Counter64}

States if interface supports IF-MIB high capacity counters

${CustomBandwidth}

Indicates if transmit and receive bandwidth fields are user‑controlled (1) or controlled by automated detection via ifSpeed MIB (0)

${CustomPollerLastStatisticsPoll}

Day, date, and time that this interface was last polled by the current Universal Device Poller

${FullName}

User friendly name combining captions of parent node and interface

${IfName}

Internal name discovered for this interface with the ifName OID

${InterfaceID}

Internal unique identifier of selected interface

${InBandwidth}

Incoming bandwidth of interface

${Inbps}

Current incoming traffic, in bps, to interface

${InDiscardsThisHour}

Number of incoming packets discarded by interface in last hour

${InDiscardsToday}

Number of incoming packets discarded by interface in current day

${InErrorsThisHour}

Number of interface receive errors in last hour

${InErrorsToday}

Number of interface receive errors in current day

${InMcastPps}

Current incoming multicast traffic, in packets per second, to interface

${InPercentUtil}

Current percent utilization of interface receive

${InPktSize}

Average size of incoming packets to interface

${InPps}

Current incoming traffic, in packets per second, to interface

${InterfaceAlias}

Alias or description of interface discovered from parent node

${InterfaceIcon}

Filename of the icon used to represent the interface type

${InterfaceIndex}

Index of selected interface on parent node

${InterfaceLastChange}

sysUpTime value when the interface entered current operational state

${InterfaceMTU}

Interface Maximum Transfer Unit: the largest packet the interface can handle

${InterfaceName}

User friendly name

${InterfaceSpeed}

Interface bandwidth

${InterfaceType}

IANA type of selected interface

${InterfaceTypeDescription}

User friendly description of interface type

${InterfaceTypeName}

User friendly name of interface IANA type

${InUcastPps}

Current incoming unicast traffic, in packets per second, to interface

${LastSync}

Time and date of last interface database and memory synchronization

${MaxSignalNoise}

Maximum signal to noise ratio, in 0.1db, over last polling interval

${MinSignalNoise}

Minimum signal to noise ratio, in 0.1db, over last polling interval

${NextPoll}

Day, date and time of next scheduled interface polling

${NextRediscovery}

Next interface rediscovery time

${NodeID}

Internal unique identifier of node that is parent to the selected interface

${ObjectSubType}

States if parent node supports SNMP or is ICMP only

${OperStatusLED}

Filename of current interface operational status icon

${OutBandwidth}

Outgoing bandwidth of interface

${Outbps}

Current outgoing traffic, in bps, from interface

${OutDiscardsThisHour}

Number of outgoing packets discarded by interface in last hour

${OutDiscardsToday}

Number of outgoing packets discarded by interface in current day

${OutErrorsThisHour}

Number of interface transmit errors in last hour

${OutErrorsToday}

Number of interface transmit errors in current day

${OutMcastPps}

Current outgoing multicast traffic, in packets per second, from interface

${OutPercentUtil}

Current percent utilization of interface transmit

${OutPktSize}

Average size of outgoing packets from interface

${OutPps}

Current outgoing traffic, in packets per second, from interface

${OutUcastPps}

Current outgoing unicast traffic, in packets per second, from interface

${PercentCodewordsCorrected}

Percent correctable codewords

${PercentCodewordsUnCorrectable}

Percent uncorrectable codewords

${PercentCodewordsUnerrored}

Percent unerrored codewords

${PhysicalAddress}

Physical address of interface

${PollInterval}

Interval, in seconds, between polling attempts for interface

${RediscoveryInterval}

Interval, in minutes, between rediscovery attempts for interface

${Severity}

A network health score providing 1 point for an interface in a warning state, 1000 points for a down interface, and 1 million points for a down node

${SignalNoise}

Signal to noise ratio, in 0.1db, for this channel. At CM, describes downstream signal to noise ratio. At CMTS, describes upstream signal to noise ratio

${StatCollection}

Interface statistics collection frequency, in minutes

${Status}

Numeric interface status. For more information, see "Node Status Variables" in the SolarWinds Network Performance Monitor Administrator Guide.

${StatusLED}

Filename of current interface status icon

${TotalCodewords}

Total codewords received on interface, regardless of error state, for all frames received