# Commandline arguments
DST_IP=$1 # destination IP address
-shift
-NUM_PORTS=$1 # number of source ports
-shift
-PKT_SIZE=$1 # packet size
+NUM_PORTS=$2 # number of source ports
+PKT_SIZE=$3 # packet size
+DURATION=$4 # test duration (seconds)
# Configuration
UDP_SRC_MIN=1000 # UDP source port min
UDP_SRC_MAX=$(( UDP_SRC_MIN + NUM_PORTS - 1 )) # UDP source port max
UDP_DST_MIN=1000 # UDP destination port min
UDP_DST_MAX=$(( UDP_DST_MIN + NUM_PORTS )) # UDP destination port max
-DURATION=20 # test duration (seconds)
# helper function to send commands to pktgen
pgset()