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- # you can disable an alarm notification by setting the 'to' line to: silent
- # check for common /proc/net/softnet_stat errors
- alarm: 1min_netdev_backlog_exceeded
- on: system.softnet_stat
- class: Errors
- type: System
- component: Network
- os: linux
- hosts: *
- lookup: average -1m unaligned absolute of dropped
- units: packets
- every: 10s
- warn: $this > (($status >= $WARNING) ? (0) : (10))
- delay: down 1h multiplier 1.5 max 2h
- summary: System netdev dropped packets
- info: Average number of dropped packets in the last minute \
- due to exceeded net.core.netdev_max_backlog
- to: silent
- alarm: 1min_netdev_budget_ran_outs
- on: system.softnet_stat
- class: Errors
- type: System
- component: Network
- os: linux
- hosts: *
- lookup: average -1m unaligned absolute of squeezed
- units: events
- every: 10s
- warn: $this > (($status >= $WARNING) ? (0) : (10))
- delay: down 1h multiplier 1.5 max 2h
- summary: System netdev budget run outs
- info: Average number of times ksoftirq ran out of sysctl net.core.netdev_budget or \
- net.core.netdev_budget_usecs with work remaining over the last minute \
- (this can be a cause for dropped packets)
- to: silent
- alarm: 10min_netisr_backlog_exceeded
- on: system.softnet_stat
- class: Errors
- type: System
- component: Network
- os: freebsd
- hosts: *
- lookup: average -1m unaligned absolute of qdrops
- units: packets
- every: 10s
- warn: $this > (($status >= $WARNING) ? (0) : (10))
- delay: down 1h multiplier 1.5 max 2h
- summary: System netisr drops
- info: Average number of drops in the last minute \
- due to exceeded sysctl net.route.netisr_maxqlen \
- (this can be a cause for dropped packets)
- to: silent
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