Documentation forNetwork Performance Monitor
Monitoring network performance is a key capability of SolarWinds Observability Self-Hosted (formerly Hybrid Cloud Observability) and is available in the Essentials edition. Network Performance Monitor (NPM) is also available in a standalone module.

Node Properties

The following node properties, listed in variable format, are currently defined and available.

Node Variable

Description

${AgentPort}

Node SNMP port number

${Allow64BitCounters}

Node allows 64-bit counters (1), or not (0)

${AvgResponseTime}

Average node response time , in msec, to ICMP requests

${BlockUntil}

Day, date, and time until which node polling is blocked

${BufferBgMissThisHour}

Device‑dependent count of big buffer misses on node in current hour, queried with MIB 1.3.6.1.4.9.2.1.30

${BufferBgMissToday}

Device‑dependent count of big buffer misses on node in current day, queried with MIB 1.3.6.1.4.9.2.1.30

${BufferHgMissThisHour}

Device‑dependent count of huge buffer misses on node in current hour, queried with MIB 1.3.6.1.4.9.2.1.62

${BufferHgMissToday}

Device‑dependent count of huge buffer misses on node in current day, queried with MIB 1.3.6.1.4.9.2.1.62

${BufferLgMissThisHour}

Device‑dependent count of large buffer misses on node in current hour, queried with MIB 1.3.6.1.4.9.2.1.38

${BufferLgMissToday}

Device‑dependent count of large buffer misses on node in current day, queried with MIB 1.3.6.1.4.9.2.1.38

${BufferMdMissThisHour}

Device‑dependent count of medium buffer misses on node in current hour, queried with MIB 1.3.6.1.4.9.2.1.22

${BufferMdMissToday}

Device‑dependent count of medium buffer misses on node in current day, queried with MIB 1.3.6.1.4.9.2.1.22

${BufferNoMemThisHour}

Count of buffer errors due to low memory on node in current hour

${BufferNoMemToday}

Count of buffer errors due to low memory on node in current day

${BufferSmMissThisHour}

Device‑dependent count of small buffer misses on node in current hour, queried with MIB 1.3.6.1.4.9.2.1.14

${BufferSmMissToday}

Device‑dependent count of small buffer misses on node in current day, queried with MIB 1.3.6.1.4.9.2.1.14

${Caption}

User friendly node name

${CMTS}

States if a node is broadband

${Community}

Node community string

${Contact}

Contact information for person or group responsible for node

${CPULoad}

Node CPU utilization rate at last poll

${CustomPollerLastStatisticsPoll}

Day, date, and time that node last made a custom MIB poll

${CustomPollerLastStatisticsPollSuccess}

Day, date, and time that node last made a successful custom MIB poll

${Description}

Node hardware and software

${DNS}

Fully qualified node name

${DynamicIP}

If node supports dynamic IP address assignment via BOOTP or DHCP (1); static IP address return (0)

${EngineID}

Internal unique identifier of the polling engine to which node is assigned

${GroupStatus}

Filename of status icon for node and its interfaces

${IOSImage}

Family name of Cisco IOS on node

${IOSVersion}

Cisco IOS version on node

${IP_Address}

Node IP address

${LastBoot}

Day, date and time of last node boot

${LastSync}

Time and date of last node database and memory synchronization

${Location}

Physical location of node

${MachineType}

Node manufacturer or distributor and family or version information

${MaxResponseTime}

Maximum node response time , in msec, to ICMP requests

${MemoryUsed}

Total node memory used over polling interval

${MinResponseTime}

Minimum node response time , in msec, to ICMP requests

${NextPoll}

Day, date and time of next scheduled node polling

${NextRediscovery}

Time of next node rediscovery

${NodeID }

Internal unique identifier of node

${ObjectSubType}

States if node supports SNMP or is ICMP‑only

${PercentLoss}

ICMP packet loss percentage when node last polled

${PercentMemoryUsed}

Percentage of total node memory used over polling interval

${PollInterval}

Node polling interval, in seconds

${RediscoveryInterval}

Node rediscovery interval, in minutes

${ResponseTime}

Node response time, in milliseconds, to last ICMP request

${RWCommunity}

Node read/write community string; acts as security code for read/write SNMP access

${RWSNMPV3AuthKey}

SNMPv3 read/write credential authentication key

${RWSNMPV3AuthKeyIsPwd}

States if the SNMPv3 read/write credential authentication key is the password

${RWSNMPV3AuthMethod}

SNMPv3 read/write credential authentication method

${RWSNMPV3Context}

SNMPv3 read/write security context information

${RWSNMPV3PrivKey}

SNMPv3 read/write credential key

${RWSNMPV3PrivKeyIsPwd}

States if the SNMPv3 read/write credential privacy key is the password

${RWSNMPV3PrivMethod}

SNMPv3 read/write credential privacy encryption method

${RWSNMPV3Username}

User friendly name for SNMPv3 read/write credential

${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.

${SNMPV2Only}

States if node only supports SNMPv1 or SNMPv2

${SNMPV3AuthKey}

SNMPv3 authentication key

${SNMPV3AuthKeyIsPwd}

States if node SNMPv3 authentication key is password

${SNMPV3AuthMethod}

SNMPv3 authentication type

${SNMPV3Context}

Group or domain of user with SNMPv3 access to node

${SNMPV3PrivKey}

SNMPv3 credential key

${SNMPV3PrivKeyIsPwd}

States if node SNMPv3 credential key is the password

${SNMPV3PrivMethod}

SNMPv3 credential key type

${SNMPV3Username}

User friendly name for SNMPv3 credential

${SNMPVersion}

States the version of SNMP used by the node

${StatCollection}

Statistics collection frequency, in minutes

${Status}

Numerical node status. For more information, see "Node Status Variables".

${StatusDescription}

User friendly node status

${StatusLED}

Filename of node status icon

${SysName}

String reply to SNMP SYS_NAME OID request

${SysObjectID}

Vendor ID of the network management subsystem in OID form. Clearly determines the type of node.

${SystemUpTime}

Time, in hundredths of a second, since network monitoring started

${TotalMemory}

Total node memory available

${UnManaged}

States if node is currently unmanaged

${UnManageFrom}

Day, date, and time when node is set to “Unmanaged”

${UnManageUntil}

Day, date, and time when node is scheduled to be managed

${Vendor}

Node manufacturer or distributor

${VendorIcon}

File name of node vendor logo