File: //proc/self/root/proc/self/root/proc/self/root/lib/netdata/conf.d/health.d/qos.conf
# you can disable an alarm notification by setting the 'to' line to: silent
# check if a QoS class is dropping packets
# the alarm is checked every 10 seconds
# and examines the last minute of data
template: 10min_qos_packet_drops
on: tc.qos_dropped
host labels: _os=linux
lookup: sum -5m unaligned absolute
every: 30s
warn: $this > 0
units: packets
summary: QOS packet drops
info: Dropped packets in the last 5 minutes
to: silent