for delay in 1000 30000; do
ovs-appctl netdev-dummy/receive p1 'in_port(2),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=1,tos=0,ttl=64,frag=no),icmp(type=8,code=0)'
+ sleep 1 # ensure the order in which these two packets are processed
ovs-appctl netdev-dummy/receive p2 'in_port(1),eth(src=50:54:00:00:00:07,dst=50:54:00:00:00:05),eth_type(0x0800),ipv4(src=192.168.0.2,dst=192.168.0.1,proto=1,tos=0,ttl=64,frag=no),icmp(type=0,code=0)'
ovs-appctl time/warp $delay
ovs-appctl time/warp 1000
ovs-appctl time/warp 1000
ovs-appctl time/warp 1000
+sleep 1
get_ages duration4 hard4 idle4
printf "duration: %4s => %4s => %4s => %4s\n" $duration1 $duration2 $duration3 $duration4