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# check for common /proc/net/softnet_stat errors
alarm: 1hour_netdev_backlog_exceeded
on: system.softnet_stat
lookup: sum -1h unaligned absolute of dropped
units: packets
every: 1m
warn: $this > 0
delay: down 30m multiplier 1.5 max 1h
info: number of packets dropped because sysctl net.core.netdev_max_backlog was exceeded (this can be a cause for dropped packets)
to: sysadmin
alarm: 1hour_netdev_budget_ran_outs
on: system.softnet_stat
lookup: sum -1h unaligned absolute of squeezed
units: events
every: 1m
warn: $this > 0
delay: down 30m multiplier 1.5 max 1h
info: number of times ksoftirq ran out of sysctl net.core.netdev_budget or time slice, with work remaining (this can be a cause for dropped packets)
to: silent
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