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# you can disable an alarm notification by setting the 'to' line to: silent
# -----------------------------------------------------------------------------
# net traffic overflow
template: interface_speed
on: net.net
class: Latency
type: System
component: Network
os: *
hosts: *
families: *
calc: ( $nic_speed_max > 0 ) ? ( $nic_speed_max) : ( nan )
units: Mbit
every: 10s
info: network interface $family current speed
template: 1m_received_traffic_overflow
on: net.net
class: Workload
type: System
component: Network
os: linux
hosts: *
families: *
lookup: average -1m unaligned absolute of received
calc: ($interface_speed > 0) ? ($this * 100 / ($interface_speed)) : ( nan )
units: %
every: 10s
warn: $this > (($status >= $WARNING) ? (85) : (90))
delay: up 1m down 1m multiplier 1.5 max 1h
info: average inbound utilization for the network interface $family over the last minute
to: sysadmin
template: 1m_sent_traffic_overflow
on: net.net
class: Workload
type: System
component: Network
os: linux
hosts: *
families: *
lookup: average -1m unaligned absolute of sent
calc: ($interface_speed > 0) ? ($this * 100 / ($interface_speed)) : ( nan )
units: %
every: 10s
warn: $this > (($status >= $WARNING) ? (85) : (90))
delay: up 1m down 1m multiplier 1.5 max 1h
info: average outbound utilization for the network interface $family over the last minute
to: sysadmin
# -----------------------------------------------------------------------------
# dropped packets
# check if an interface is dropping packets
# the alarm is checked every 1 minute
# and examines the last 10 minutes of data
#
# it is possible to have expected packet drops on an interface for some network configurations
# look at the Monitoring Network Interfaces section in the proc.plugin documentation for more information
template: inbound_packets_dropped
on: net.drops
class: Errors
type: System
component: Network
os: linux
hosts: *
families: *
lookup: sum -10m unaligned absolute of inbound
units: packets
every: 1m
info: number of inbound dropped packets for the network interface $family in the last 10 minutes
template: outbound_packets_dropped
on: net.drops
class: Errors
type: System
component: Network
os: linux
hosts: *
families: *
lookup: sum -10m unaligned absolute of outbound
units: packets
every: 1m
info: number of outbound dropped packets for the network interface $family in the last 10 minutes
template: inbound_packets_dropped_ratio
on: net.packets
class: Errors
type: System
component: Network
os: linux
hosts: *
families: !wl* *
lookup: sum -10m unaligned absolute of received
calc: (($inbound_packets_dropped != nan AND $this > 10000) ? ($inbound_packets_dropped * 100 / $this) : (0))
units: %
every: 1m
warn: $this >= 2
delay: up 1m down 1h multiplier 1.5 max 2h
info: ratio of inbound dropped packets for the network interface $family over the last 10 minutes
to: sysadmin
template: outbound_packets_dropped_ratio
on: net.packets
class: Errors
type: System
component: Network
os: linux
hosts: *
families: !wl* *
lookup: sum -10m unaligned absolute of sent
calc: (($outbound_packets_dropped != nan AND $this > 1000) ? ($outbound_packets_dropped * 100 / $this) : (0))
units: %
every: 1m
warn: $this >= 2
delay: up 1m down 1h multiplier 1.5 max 2h
info: ratio of outbound dropped packets for the network interface $family over the last 10 minutes
to: sysadmin
template: wifi_inbound_packets_dropped_ratio
on: net.packets
class: Errors
type: System
component: Network
os: linux
hosts: *
families: wl*
lookup: sum -10m unaligned absolute of received
calc: (($inbound_packets_dropped != nan AND $this > 10000) ? ($inbound_packets_dropped * 100 / $this) : (0))
units: %
every: 1m
warn: $this >= 10
delay: up 1m down 1h multiplier 1.5 max 2h
info: ratio of inbound dropped packets for the network interface $family over the last 10 minutes
to: sysadmin
template: wifi_outbound_packets_dropped_ratio
on: net.packets
class: Errors
type: System
component: Network
os: linux
hosts: *
families: wl*
lookup: sum -10m unaligned absolute of sent
calc: (($outbound_packets_dropped != nan AND $this > 1000) ? ($outbound_packets_dropped * 100 / $this) : (0))
units: %
every: 1m
warn: $this >= 10
delay: up 1m down 1h multiplier 1.5 max 2h
info: ratio of outbound dropped packets for the network interface $family over the last 10 minutes
to: sysadmin
# -----------------------------------------------------------------------------
# interface errors
template: interface_inbound_errors
on: net.errors
class: Errors
type: System
component: Network
os: freebsd
hosts: *
families: *
lookup: sum -10m unaligned absolute of inbound
units: errors
every: 1m
warn: $this >= 5
delay: down 1h multiplier 1.5 max 2h
info: number of inbound errors for the network interface $family in the last 10 minutes
to: sysadmin
template: interface_outbound_errors
on: net.errors
class: Errors
type: System
component: Network
os: freebsd
hosts: *
families: *
lookup: sum -10m unaligned absolute of outbound
units: errors
every: 1m
warn: $this >= 5
delay: down 1h multiplier 1.5 max 2h
info: number of outbound errors for the network interface $family in the last 10 minutes
to: sysadmin
# -----------------------------------------------------------------------------
# FIFO errors
# check if an interface is having FIFO
# buffer errors
# the alarm is checked every 1 minute
# and examines the last 10 minutes of data
template: 10min_fifo_errors
on: net.fifo
class: Errors
type: System
component: Network
os: linux
hosts: *
families: *
lookup: sum -10m unaligned absolute
units: errors
every: 1m
warn: $this > 0
delay: down 1h multiplier 1.5 max 2h
info: number of FIFO errors for the network interface $family in the last 10 minutes
to: sysadmin
# -----------------------------------------------------------------------------
# check for packet storms
# 1. calculate the rate packets are received in 1m: 1m_received_packets_rate
# 2. do the same for the last 10s
# 3. raise an alarm if the later is 10x or 20x the first
# we assume the minimum packet storm should at least have
# 10000 packets/s, average of the last 10 seconds
template: 1m_received_packets_rate
on: net.packets
class: Workload
type: System
component: Network
os: linux freebsd
hosts: *
families: *
lookup: average -1m unaligned of received
units: packets
every: 10s
info: average number of packets received by the network interface $family over the last minute
template: 10s_received_packets_storm
on: net.packets
class: Workload
type: System
component: Network
os: linux freebsd
hosts: *
families: *
lookup: average -10s unaligned of received
calc: $this * 100 / (($1m_received_packets_rate < 1000)?(1000):($1m_received_packets_rate))
every: 10s
units: %
warn: $this > (($status >= $WARNING)?(200):(5000))
crit: $this > (($status == $CRITICAL)?(5000):(6000))
options: no-clear-notification
info: ratio of average number of received packets for the network interface $family over the last 10 seconds, \
compared to the rate over the last minute
to: sysadmin
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