INTERFACE=0.0
PATH=/shared/tmp/pba
FILENAME=tcpdump-%Y-%m-%d_%H%M%S.pcap

# Execute tcpdump command
# -W 5 = Limit 5 files
# -G 60 = Rotate every 60 seconds
/usr/sbin/tcpdump -K -W 5 -G 60 -nni $INTERFACE -s0 -w "$PATH/$FILENAME"