Thanks Syed. It was a snippet that I showed. There are flows with n_packets > 0.
cookie=0, duration_sec=382s, duration_nsec=535000000s, table_id=0, priority=32768, n_packets=757, n_bytes=58265, idle_timeout=0,hard_timeout=0,tcp,nw_dst=10.0.0.2,tp_dst=34092,actions=mod_dl_dst:00:00:00:00:00:02,mod_nw_src:10.0.0.253,mod_tp_src:6002,output:2 cookie=0, duration_sec=410s, duration_nsec=118000000s, table_id=0, priority=32768, n_packets=0, n_bytes=0, idle_timeout=0,hard_timeout=0,tcp,nw_dst=10.0.0.253,tp_dst=6008,actions=CONTROLLER:65535,mod_dl_dst:00:00:00:00:00:02,mod_nw_dst:10.0.0.2,mod_tp_dst:5000,output:2 cookie=0, duration_sec=410s, duration_nsec=120000000s, table_id=0, priority=32768, n_packets=382, n_bytes=33158, idle_timeout=0,hard_timeout=0,tcp,nw_dst=10.0.0.253,tp_dst=6002,actions=CONTROLLER:65535,mod_dl_dst:00:00:00:00:00:04,mod_nw_dst:10.0.0.4,mod_tp_dst:5000,output:4 I check the flow-tables every 1 sec. Flow-table entries dont grow with time. Thanks, Rohan On Tue, Apr 17, 2012 at 3:39 PM, Syed Muhammad Mohsin Kazmi < [email protected]> wrote: > If you see at flow table,there is no packet hits the flow at field > n_packets=0. In my opinion, every packet sent to controller where your > app. write down the flow for it to the swtich each time, so that is > why your flow-table entries are flushed after some time. You should > check your code again, i think so, there is a problem. > > Regards, > Syed M. Mohsin Kazmi > > On Wed, Apr 18, 2012 at 12:13 AM, Rohan Gandhi <[email protected]> > wrote: > > Hello All, > > > > I am sorry to bother you again. I got most of my questions sorted out. > But > > my flow-table entries are getting flushed after some time. All the flows > > that I add have idle and hard timeout set to permanent. The switch has 6 > > ports with 3 TCP connections (1 TCP connection for 2 hosts with no host > > having more than 1 connection). I continuously send the packets over > these 3 > > flows. Any idea on why this is happening? These does not happen if I > limit > > the traffic (by adding a delay at the hosts). I could not quantify how > much > > traffic I reduced though. > > > > The following is the snippet of the flow-table. > > > > Thanks! > > Rohan > > > > openflow@openflowtutorial:~$ dpctl dump-flows tcp:127.0.0.1:6634 > > stats_reply (xid=0x2e34f6b7): flags=none type=1(flow) > > cookie=0, duration_sec=12s, duration_nsec=558000000s, table_id=0, > > priority=32768, n_packets=0, n_bytes=0, > > > idle_timeout=0,hard_timeout=0,tcp,nw_dst=10.0.0.253,tp_dst=6008,actions=CONTROLLER:65535,mod_dl_dst:00:00:00:00:00:02,mod_nw_dst:10.0.0.2,mod_tp_dst:5000,output:2 > > ... > > .. > > > > > > > > openflow@openflowtutorial:~$ dpctl dump-flows tcp:127.0.0.1:6634 > > stats_reply (xid=0xc01ad743): flags=none type=1(flow) > > >
