This macro is used in CAPsMAN AP channel discovery. It can be overridden on the host level.

This macro is used in LTE modem discovery. It can be overridden on the host.

The LTE modem RSSI minimum value for warning trigger expression.

The LTE modem RSRP minimum value for warning trigger expression.

The LTE modem RSRQ minimum value for warning trigger expression.

The LTE modem SINR minimum value for warning trigger expression.

Time interval for the SNMP availability trigger.

Warning threshold of ICMP packet loss in %.

Warning threshold of the average ICMP response time in seconds.

Warning threshold of error packet rate. Can be used with interface name as context.

Used as a threshold in the interface utilization trigger.

Link status trigger will be fired only for interfaces where the context macro equals "1".

Used for network interface discovery. Can be overridden on the host or linked template level.

Filters out loopbacks, nulls, docker veth links and docker0 bridge by default.

Used for network interface discovery. Can be overridden on the host or linked template level.

Ignore notPresent(6)

Used in network interface discovery rule filters.

Ignore down(2) administrative status

Used in network interface discovery rule filters.

Used in network interface discovery rule filters.

Used in network interface discovery rule filters.

Used in network interface discovery rule filters.

Used in network interface discovery rule filters.

Used in network interface discovery rule filters.

MIB: HOST-RESOURCES-MIB

Discovering system CPUs.

MIB: MIKROTIK-MIB

Discovering CPU temperature sensors.

MIB: MIKROTIK-MIB

Discovering temperature sensors.

MIB: HOST-RESOURCES-MIB

Discovering mounted filesystems.

MIB: HOST-RESOURCES-MIB

The amount of the storage represented by this entry that is allocated, in units of hrStorageAllocationUnits.

Preprocessing

• Custom multiplier: 1024

MIB: HOST-RESOURCES-MIB

The size of the storage represented by this entry, in

units of hrStorageAllocationUnits. This object is

writable to allow remote configuration of the size of

the storage area in those cases where such an

operation makes sense and is possible on the

underlying system. For example, the amount of main

memory allocated to a buffer pool might be modified or

the amount of disk space allocated to virtual memory

might be modified.

Preprocessing

• Custom multiplier: 1024

Memory utilization in %.

MIB: MIKROTIK-MIB

Software version.

Preprocessing

• Discard unchanged with heartbeat: 1d

Preprocessing

• Discard unchanged with heartbeat: 1d

MIB: MIKROTIK-MIB

RouterBOARD serial number.

Preprocessing

• Discard unchanged with heartbeat: 1d

MIB: MIKROTIK-MIB

Current firmware version.

Preprocessing

• Discard unchanged with heartbeat: 1d

MIB: SNMPv2-MIB

Time (in hundredths of a second) since the network management portion of the system was last re-initialized.

Preprocessing

• Custom multiplier: 0.01

MIB: HOST-RESOURCES-MIB

The amount of time since this host was last initialized. Note that this is different from sysUpTime in the SNMPv2-MIB [RFC1907] because sysUpTime is the uptime of the network management portion of the system.

Preprocessing

• Check for not supported value: any error

  ⛔️Custom on fail: Set value to: 0

• Custom multiplier: 0.01

The item is used to collect all SNMP traps unmatched by other snmptrap items

MIB: SNMPv2-MIB

Physical location of the node (e.g., equipment room, 3rd floor). If not provided, the value is a zero-length string.

Preprocessing

• Discard unchanged with heartbeat: 12h

MIB: SNMPv2-MIB

The textual identification of the contact person for this managed node, together with information on how to contact this person. If no contact information is known, the value is the zero-length string.

Preprocessing

• Discard unchanged with heartbeat: 12h

MIB: SNMPv2-MIB

The vendor's authoritative identification of the network management subsystem contained in the entity. This value is allocated within the SMI enterprises subtree (1.3.6.1.4.1) and provides an easy and unambiguous means for determiningwhat kind of box' is being managed. For example, if vendorFlintstones, Inc.' was assigned the subtree1.3.6.1.4.1.4242, it could assign the identifier 1.3.6.1.4.1.4242.1.1 to its `Fred Router'.

Preprocessing

• Discard unchanged with heartbeat: 12h

MIB: SNMPv2-MIB

An administratively-assigned name for this managed node.By convention, this is the node's fully-qualified domain name. If the name is unknown, the value is the zero-length string.

Preprocessing

• Discard unchanged with heartbeat: 12h

MIB: SNMPv2-MIB

A textual description of the entity. This value should

include the full name and version identification of the system's hardware type, software operating-system, and

networking software.

Preprocessing

• Discard unchanged with heartbeat: 12h

Availability of SNMP checks on the host. The value of this item corresponds to availability icons in the host list.

Possible values:

0 - not available

1 - available

2 - unknown

Discovering interfaces from IF-MIB.

The system is running out of free memory.

The description of the operating system has changed. Possible reasons are that the system has been updated or replaced. Acknowledge to close the problem manually.

• MikroTik: System name has changed

Device serial number has changed. Acknowledge to close the problem manually.

Firmware version has changed. Acknowledge to close the problem manually.

Uptime is less than 10 minutes.

• MikroTik: No SNMP data collection

The name of the system has changed. Acknowledge to close the problem manually.

SNMP is not available for polling. Please check device connectivity and SNMP settings.

• MikroTik: Unavailable by ICMP ping

Last three attempts returned timeout. Please check device connectivity.

• MikroTik: Unavailable by ICMP ping

Average ICMP response time is too high.

• MikroTik: High ICMP ping loss
• MikroTik: Unavailable by ICMP ping

HOST-RESOURCES-MIB::hrProcessorTable discovery.

Preprocessing

• SNMP walk to JSON

• Discard unchanged with heartbeat: 1h

MIB: HOST-RESOURCES-MIB

The average, over the last minute, of the percentage of time that this processor was not idle. Implementations may approximate this one minute smoothing period if necessary.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.25.3.3.1.2.{#SNMPINDEX}

CPU utilization is too high. The system might be slow to respond.

MIKROTIK-MIB::mtxrHlProcessorTemperature

Since temperature of CPU is not available on all Mikrotik hardware, this is done to avoid unsupported items.

Preprocessing

• SNMP walk to JSON

  ⛔️Custom on fail: Discard value

• Discard unchanged with heartbeat: 1h

MIB: MIKROTIK-MIB

mtxrHlProcessorTemperature Processor temperature in Celsius (degrees C).

Might be missing in entry models (RB750, RB450G..).

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.3.11.{#SNMPINDEX}

• Custom multiplier: 0.1

• Discard unchanged with heartbeat: 3m

This trigger uses temperature sensor values as well as temperature sensor status if available.

• MikroTik: CPU: Temperature is above critical threshold

This trigger uses temperature sensor values as well as temperature sensor status if available.

MIKROTIK-MIB::mtxrHlTemperature

Since temperature sensor is not available on all Mikrotik hardware, this is done to avoid unsupported items.

Preprocessing

• SNMP walk to JSON

  ⛔️Custom on fail: Discard value

• Discard unchanged with heartbeat: 1h

MIB: MIKROTIK-MIB

mtxrHlTemperature Device temperature in Celsius (degrees C).

Might be missing in entry models (RB750, RB450G..).

Reference: http://wiki.mikrotik.com/wiki/Manual:SNMP

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.3.10.{#SNMPINDEX}

• Custom multiplier: 0.1

• Discard unchanged with heartbeat: 3m

This trigger uses temperature sensor values as well as temperature sensor status if available.

• MikroTik: Device: Temperature is above critical threshold

This trigger uses temperature sensor values as well as temperature sensor status if available.

MIKROTIK-MIB::mtxrLTEModemInterfaceIndex.

Preprocessing

• SNMP walk to JSON

• Discard unchanged with heartbeat: 1h

MIB: MIKROTIK-MIB

mtxrLTEModemSignalRSSI Received Signal Strength Indicator.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.16.1.1.2.{#SNMPINDEX}

MIB: MIKROTIK-MIB

mtxrLTEModemSignalRSRP Reference Signal Received Power.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.16.1.1.4.{#SNMPINDEX}

MIB: MIKROTIK-MIB

mtxrLTEModemSignalRSRQ Reference Signal Received Quality.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.16.1.1.3.{#SNMPINDEX}

MIB: MIKROTIK-MIB

mtxrLTEModemSignalSINR Signal to Interference & Noise Ratio.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.16.1.1.7.{#SNMPINDEX}

MIKROTIK-MIB::mtxrWlAp.

Preprocessing

• SNMP walk to JSON

• Discard unchanged with heartbeat: 1h

MIB: MIKROTIK-MIB

mtxrWlApSsid Service Set Identifier.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.1.3.1.4.{#SNMPINDEX}

• Discard unchanged with heartbeat: 1h

MIB: MIKROTIK-MIB

mtxrWlApBand

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.1.3.1.8.{#SNMPINDEX}

• Discard unchanged with heartbeat: 1h

MIB: MIKROTIK-MIB

mtxrWlApNoiseFloor

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.1.3.1.9.{#SNMPINDEX}

• Discard unchanged with heartbeat: 15m

MIB: MIKROTIK-MIB

mtxrWlApClientCount Client established connection to AP, but didn't finish all authentication procedures for full connection.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.1.3.1.6.{#SNMPINDEX}

MIB: MIKROTIK-MIB

mtxrWlApAuthClientCount Number of authentication clients.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.1.3.1.11.{#SNMPINDEX}

MIKROTIK-MIB::mtxrWlCMChannel.

Preprocessing

• SNMP walk to JSON

• Discard unchanged with heartbeat: 1h

MIB: MIKROTIK-MIB

mtxrWlCMChannel

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.1.7.1.5.{#SNMPINDEX}

• Discard unchanged with heartbeat: 1h

MIB: MIKROTIK-MIB

mtxrWlCMState Wireless interface state.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.1.7.1.4.{#SNMPINDEX}

• Discard unchanged with heartbeat: 1h

MIB: MIKROTIK-MIB

mtxrWlCMRegClientCount Client established connection to AP, but didn't finish all authentication procedures for full connection.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.1.7.1.2.{#SNMPINDEX}

MIB: MIKROTIK-MIB

mtxrWlCMAuthClientCount Number of authentication clients.

Preprocessing

• SNMP walk value: 1.3.6.1.4.1.14988.1.1.1.7.1.3.{#SNMPINDEX}

Access point interface can be not running by different reasons - disabled interface, power off, network link down.

HOST-RESOURCES-MIB::hrStorage discovery with storage filter.

Preprocessing

• SNMP walk to JSON

• Discard unchanged with heartbeat: 1h

MIB: HOST-RESOURCES-MIB

The amount of the storage represented by this entry that is allocated, in units of hrStorageAllocationUnits.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.25.2.3.1.6.{#SNMPINDEX}

• Custom multiplier: 1024

MIB: HOST-RESOURCES-MIB

The size of the storage represented by this entry, in

units of hrStorageAllocationUnits. This object is

writable to allow remote configuration of the size of

the storage area in those cases where such an

operation makes sense and is possible on the

underlying system. For example, the amount of main

memory allocated to a buffer pool might be modified or

the amount of disk space allocated to virtual memory

might be modified.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.25.2.3.1.5.{#SNMPINDEX}

• Custom multiplier: 1024

The space utilization expressed in % for Disk-{#SNMPINDEX}.

Two conditions should match: First, space utilization should be above {$VFS.FS.PUSED.MAX.CRIT:"Disk-{#SNMPINDEX}"}.
Second condition should be one of the following:
- The disk free space is less than {$VFS.FS.FREE.MIN.CRIT:"Disk-{#SNMPINDEX}"}.
- The disk will be full in less than 24 hours.

Two conditions should match: First, space utilization should be above {$VFS.FS.PUSED.MAX.WARN:"Disk-{#SNMPINDEX}"}.
Second condition should be one of the following:
- The disk free space is less than {$VFS.FS.FREE.MIN.WARN:"Disk-{#SNMPINDEX}"}.
- The disk will be full in less than 24 hours.

• MikroTik: Disk-{#SNMPINDEX}: Disk space is critically low

Discovering interfaces from IF-MIB.

Preprocessing

• SNMP walk to JSON

• Discard unchanged with heartbeat: 1h

MIB: IF-MIB

The current operational state of the interface.

- The testing(3) state indicates that no operational packet scan be passed

- If ifAdminStatus is down(2) then ifOperStatus should be down(2)

- If ifAdminStatus is changed to up(1) then ifOperStatus should change to up(1) if the interface is ready to transmit and receive network traffic

- It should change todormant(5) if the interface is waiting for external actions (such as a serial line waiting for an incoming connection)

- It should remain in the down(2) state if and only if there is a fault that prevents it from going to the up(1) state

- It should remain in the notPresent(6) state if the interface has missing(typically, hardware) components.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.2.2.1.8.{#SNMPINDEX}

MIB: IF-MIB

The total number of octets received on the interface, including framing characters. This object is a 64-bit version of ifInOctets. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.31.1.1.1.6.{#SNMPINDEX}

• Change per second

• Custom multiplier: 8

MIB: IF-MIB

The total number of octets transmitted out of the interface, including framing characters. This object is a 64-bit version of ifOutOctets.Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.31.1.1.1.10.{#SNMPINDEX}

• Change per second

• Custom multiplier: 8

MIB: IF-MIB

For packet-oriented interfaces, the number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. For character-oriented or fixed-length interfaces, the number of inbound transmission units that contained errors preventing them from being deliverable to a higher-layer protocol. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.2.2.1.14.{#SNMPINDEX}

• Change per second

• Discard unchanged with heartbeat: 3m

MIB: IF-MIB

For packet-oriented interfaces, the number of outbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. For character-oriented or fixed-length interfaces, the number of outbound transmission units that contained errors preventing them from being deliverable to a higher-layer protocol. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.2.2.1.20.{#SNMPINDEX}

• Change per second

• Discard unchanged with heartbeat: 3m

MIB: IF-MIB

The number of outbound packets which were chosen to be discarded

even though no errors had been detected to prevent their being deliverable to a higher-layer protocol.

One possible reason for discarding such a packet could be to free up buffer space.

Discontinuities in the value of this counter can occur at re-initialization of the management system,

and at other times as indicated by the value of ifCounterDiscontinuityTime.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.2.2.1.19.{#SNMPINDEX}

• Change per second

• Discard unchanged with heartbeat: 3m

MIB: IF-MIB

The number of inbound packets which were chosen to be discarded

even though no errors had been detected to prevent their being deliverable to a higher-layer protocol.

One possible reason for discarding such a packet could be to free up buffer space.

Discontinuities in the value of this counter can occur at re-initialization of the management system,

and at other times as indicated by the value of ifCounterDiscontinuityTime.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.2.2.1.13.{#SNMPINDEX}

• Change per second

• Discard unchanged with heartbeat: 3m

MIB: IF-MIB

The type of interface.

Additional values for ifType are assigned by the Internet Assigned Numbers Authority (IANA),

through updating the syntax of the IANAifType textual convention.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.2.2.1.3.{#SNMPINDEX}

• Discard unchanged with heartbeat: 1d

MIB: IF-MIB

An estimate of the interface's current bandwidth in units of 1,000,000 bits per second. If this object reports a value of n, then the speed of the interface is somewhere in the range of n-500,000 to n+499,999.

For interfaces which do not vary in bandwidth or for those where no accurate estimation can be made, this object should contain the nominal bandwidth.

For a sub-layer which has no concept of bandwidth, this object should be zero.

Preprocessing

• SNMP walk value: 1.3.6.1.2.1.31.1.1.1.15.{#SNMPINDEX}

• Custom multiplier: 1000000

• Discard unchanged with heartbeat: 1h

This trigger expression works as follows:
1. It can be triggered if the operations status is down.
2. {$IFCONTROL:"{#IFNAME}"}=1 - a user can redefine the context macro to "0", marking this interface as not important. No new trigger will be fired if this interface is down.
3. last(/TEMPLATE_NAME/METRIC,#1)<>last(/TEMPLATE_NAME/METRIC,#2) - the trigger fires only if the operational status was up to (1) sometime before (so, does not fire for "eternal off" interfaces.)

WARNING: if closed manually - it will not fire again on the next poll, because of .diff.

The utilization of the network interface is close to its estimated maximum bandwidth.

• MikroTik: Interface {#IFNAME}({#IFALIAS}): Link down

It recovers when it is below 80% of the {$IF.ERRORS.WARN:"{#IFNAME}"} threshold.

• MikroTik: Interface {#IFNAME}({#IFALIAS}): Link down

This Ethernet connection has transitioned down from its known maximum speed. This might be a sign of autonegotiation issues. Acknowledge to close the problem manually.

• MikroTik: Interface {#IFNAME}({#IFALIAS}): Link down