<div dir="ltr">Hi,
<div><br></div><div>I set idle_time_out = 0 and hard_time_out = 0 when I send flow-modify message to the controller.</div><div>Then I dump the flows, got something like:</div><div><br></div><div><div>*** s4 ------------------------------------------------------------------------</div><div>NXST_FLOW reply (xid=0x4):</div><div> cookie=0x0, duration=0.499s, table=0, n_packets=0, n_bytes=0, idle_age=0, priority=65535,arp,in_port=2,vlan_tci=0x0000,dl_src=ca:95:02:89:af:91,dl_dst=ae:ff:49:7b:43:37,arp_spa=10.0.0.1,arp_tpa=10.0.0.7,arp_op=1 actions=output:3</div><div> cookie=0x0, duration=0.39s, table=0, n_packets=0, n_bytes=0, idle_age=0, priority=65535,arp,in_port=3,vlan_tci=0x0000,dl_src=ae:ff:49:7b:43:37,dl_dst=ca:95:02:89:af:91,arp_spa=10.0.0.7,arp_tpa=10.0.0.1,arp_op=2 actions=output:2</div><div> cookie=0x0, duration=0.39s, table=0, n_packets=1, n_bytes=42, idle_age=0, priority=65535,arp,in_port=2,vlan_tci=0x0000,dl_src=ca:95:02:89:af:91,dl_dst=ae:ff:49:7b:43:37,arp_spa=10.0.0.1,arp_tpa=10.0.0.7,arp_op=2 actions=output:3</div><div> cookie=0x0, duration=0.501s, table=0, n_packets=1, n_bytes=42, idle_age=0, priority=65535,arp,in_port=3,vlan_tci=0x0000,dl_src=ae:ff:49:7b:43:37,dl_dst=ca:95:02:89:af:91,arp_spa=10.0.0.7,arp_tpa=10.0.0.1,arp_op=1 actions=output:2</div></div><div><br></div><div>But the flow still expired immediately.</div><div>When I dump flows again, it showed nothing.</div><div><br></div><div>Can someone tell me how to make flows permanent?</div><div>Thank you.</div><div><br></div><div>Bowei</div></div>