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Diffstat (limited to 'health/health.d/net.conf')
| -rw-r--r-- | health/health.d/net.conf | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/health/health.d/net.conf b/health/health.d/net.conf new file mode 100644 index 0000000..ae3c26e --- /dev/null +++ b/health/health.d/net.conf @@ -0,0 +1,165 @@ + +# you can disable an alarm notification by setting the 'to' line to: silent + +# ----------------------------------------------------------------------------- +# net traffic overflow + + template: interface_speed + on: net.net + os: * + hosts: * + families: * + calc: ( $nic_speed_max > 0 ) ? ( $nic_speed_max) : ( nan ) + units: Mbit + every: 10s + info: The current speed of the physical network interface + + template: 1m_received_traffic_overflow + on: net.net + os: linux + hosts: * + families: * + lookup: average -1m unaligned absolute of received + calc: ($interface_speed > 0) ? ($this * 100 / ($interface_speed * 1000)) : ( nan ) + units: % + every: 10s + warn: $this > (($status >= $WARNING) ? (80) : (85)) + crit: $this > (($status == $CRITICAL) ? (85) : (90)) + delay: down 1m multiplier 1.5 max 1h + info: interface received bandwidth usage over net device speed max + to: sysadmin + + template: 1m_sent_traffic_overflow + on: net.net + os: linux + hosts: * + families: * + lookup: average -1m unaligned absolute of sent + calc: ($interface_speed > 0) ? ($this * 100 / ($interface_speed * 1000)) : ( nan ) + units: % + every: 10s + warn: $this > (($status >= $WARNING) ? (80) : (85)) + crit: $this > (($status == $CRITICAL) ? (85) : (90)) + delay: down 1m multiplier 1.5 max 1h + info: interface sent bandwidth usage over net device speed max + 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 + +template: inbound_packets_dropped + on: net.drops + os: linux + hosts: * +families: * + lookup: sum -10m unaligned absolute of inbound + units: packets + every: 1m + warn: $this >= 5 + delay: down 1h multiplier 1.5 max 2h + info: interface inbound dropped packets in the last 10 minutes + to: sysadmin + +template: outbound_packets_dropped + on: net.drops + os: linux + hosts: * +families: * + lookup: sum -10m unaligned absolute of outbound + units: packets + every: 1m + warn: $this >= 5 + delay: down 1h multiplier 1.5 max 2h + info: interface outbound dropped packets in the last 10 minutes + to: sysadmin + +template: inbound_packets_dropped_ratio + on: net.packets + os: linux + hosts: * +families: * + lookup: sum -10m unaligned absolute of received + calc: (($inbound_packets_dropped != nan AND $this > 0) ? ($inbound_packets_dropped * 100 / $this) : (0)) + units: % + every: 1m + warn: $this >= 0.1 + crit: $this >= 2 + delay: down 1h multiplier 1.5 max 2h + info: the ratio of inbound dropped packets vs the total number of received packets of the network interface, during the last 10 minutes + to: sysadmin + +template: outbound_packets_dropped_ratio + on: net.packets + os: linux + hosts: * +families: * + lookup: sum -10m unaligned absolute of sent + calc: (($outbound_packets_dropped != nan AND $this > 0) ? ($outbound_packets_dropped * 100 / $this) : (0)) + units: % + every: 1m + warn: $this >= 0.1 + crit: $this >= 2 + delay: down 1h multiplier 1.5 max 2h + info: the ratio of outbound dropped packets vs the total number of sent packets of the network interface, during 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 + 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: interface fifo errors 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 + os: linux freebsd + hosts: * +families: * + lookup: average -1m unaligned of received + units: packets + every: 10s + info: the average number of packets received during the last minute + +template: 10s_received_packets_storm + on: net.packets + 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 >= $WARNING)?(5000):(6000)) +options: no-clear-notification + info: the % of the rate of received packets in the last 10 seconds, compared to the rate of the last minute (clear notification for this alarm will not be sent) + to: sysadmin |