Hi, Bhanu,
I could still observe the issue. Please keep me in the loop if you have any updates. Thanks, An ________________________________ 发件人: awan...@masonlive.gmu.edu 发送时间: 2016年8月4日 1:14:57 收件人: Bodireddy, Bhanuprakash; discuss@openvswitch.org 主题: 答复: help - ovs 2.5 flow statistics issues Hi, Bhanu, In my case, I don't think it is the rate issue. I sent the traffic at a very low rate (~0.7 Mbps) and the statistics are still not correct. Also, in my trace for the test, traffic belonging 10.0.0.0/8 -> 81.0.0.0/8 only serves a small portion. The total statistics combined together are correct, e.g. the results I observed: NXST_FLOW reply (xid=0x4): cookie=0x0, duration=2.183s, table=0, n_packets=12, n_bytes=2083, idle_age=2, priority=50000,ip, in_port=1,nw_src=10.0.0.0/8 actions=output:2 cookie=0x0, duration=10.829s, table=0, n_packets=2328320, n_bytes=216980958, idle_age=10, in_port=1 actions=output:2 The sum of 12 and 2328320 is correct. However, there should be 2075 packets belonging to 10.0.0.0/8 -> 81.0.0.0/8. After looking into the kernel flow table, I found that in the beginning, masked key 10.0.0.0/255.0.0.0 -> 81.0.0.0/255.0.0.0 was installed and packets were processed fine. But after a while, this masked key will be removed by the revalidator thread due to the mismatches of the flows in the kernel table. So my guess is that either I misconfigured the kernel flow table or there is something wrong with the kernel. Could you please help further verify this? Appreciate your help! Thanks, An ________________________________ 发件人: Bodireddy, Bhanuprakash <bhanuprakash.bodire...@intel.com> 发送时间: 2016年8月3日 17:55:44 收件人: awan...@masonlive.gmu.edu; discuss@openvswitch.org 主题: RE: help - ovs 2.5 flow statistics issues >-----Original Message----- >From: awan...@masonlive.gmu.edu [mailto:awan...@masonlive.gmu.edu] >Sent: Monday, August 1, 2016 3:49 PM >To: Bodireddy, Bhanuprakash <bhanuprakash.bodire...@intel.com>; >discuss@openvswitch.org >Subject: 答复: help - ovs 2.5 flow statistics issues > >Thank you, Bhanu, for your verification. I really appreciate it! >Please keep me updated if you figure out the root cause of this problem. Can you reduce the packet rate and reverify the stats. I don’t see a problem with stats when adjusted my packet rate. Regards, Bhanu Prakash. > >Thanks, An >________________________________________ >发件人: Bodireddy, Bhanuprakash <bhanuprakash.bodire...@intel.com> >发送时间: 2016年8月1日 22:43:37 >收件人: awan...@masonlive.gmu.edu; discuss@openvswitch.org >主题: RE: help - ovs 2.5 flow statistics issues > >>-----Original Message----- >>From: awan...@masonlive.gmu.edu >[mailto:awan...@masonlive.gmu.edu] >>Sent: Monday, August 1, 2016 12:52 PM >>To: Bodireddy, Bhanuprakash <bhanuprakash.bodire...@intel.com>; >>discuss@openvswitch.org >>Subject: 答复: help - ovs 2.5 flow statistics issues >> >>Hi, Bhanu, >> >>Thank you for your response! I tried it with the master branch and it works! I >>guess it is a problem with the 2.5.0 version. >>But I noticed that the statistics are actually wrong in my case even though I >>could see the counts. > >You are right, the stats doesn't seem accurate in my case too. >I tested it by sending 100k packets for 5 runs and below is 'n_packets' count >in >dump-flows output. > > Reported | Actual >97206 | 100,000 >97833 | 100,000 >97954 | 100,000 >98334 | 100,000 >98017 | 100,000 > >Regards, >Bhanu Prakash. > >>Could you please help verify if you have obtained accurate results for your >>case? >> >>Thanks, >>An >>________________________________________ >>发件人: Bodireddy, Bhanuprakash <bhanuprakash.bodire...@intel.com> >>发送时间: 2016年8月1日 15:59:13 >>收件人: awan...@masonlive.gmu.edu; discuss@openvswitch.org >>主题: RE: help - ovs 2.5 flow statistics issues >> >>>-----Original Message----- >>>From: discuss [mailto:discuss-boun...@openvswitch.org] On Behalf Of >>>awan...@masonlive.gmu.edu >>>Sent: Wednesday, July 27, 2016 3:14 PM >>>To: discuss@openvswitch.org >>>Subject: [ovs-discuss] help - ovs 2.5 flow statistics issues >>> >>>Hi, All, >>> >>>I am running openvswitch 2.5.0 on Ubuntu 14.04 LTS with kernel 3.13.0-92- >>>generic. >>>I installed the two following rules to the switch: >>> >>>NXST_FLOW reply (xid=0x4): >>> cookie=0x0, duration=2.183s, table=0, n_packets=0, n_bytes=0, >idle_age=2, >>>priority=50000,ip,in_port=1,nw_src=10.0.0.0/8,nw_dst=81.0.0.0/8 >>>actions=output:2 >>> cookie=0x0, duration=10.829s, table=0, n_packets=0, n_bytes=0, >>>idle_age=10, in_port=1 actions=output:2 >>> >>>Another host machine connecting to the switch generates traffic (including >>>10.0.0.0/8 -> 81.0.0.0/8) that goes through the switch. >>>However, the statistics were not be updated correctly with n_packets for >>the >>>higher priority rule remaining 0 while all the traffic statistics being >>>credited >to >>>the lower priority rule. >>>But if I modify the rules to be: >>> >>>NXST_FLOW reply (xid=0x4): >>> cookie=0x0, duration=2.183s, table=0, n_packets=0, n_bytes=0, >idle_age=2, >>>priority=50000,ip,in_port=1,nw_src=10.0.0.0/8 actions=output:2 >>> cookie=0x0, duration=10.829s, table=0, n_packets=0, n_bytes=0, >>>idle_age=10, in_port=1 actions=output:2 >>> >>>Then it works fine. So it seems that statistics with both nw_src and nw_dst >>>matching do not work properly? >> >>I don't see an issue matching both nw_src & nw_dst and can see the >>'n_packets', 'n_bytes' entry incremented for all matching packets. I quickly >>verified this on master branch. >> >>NXST_FLOW reply (xid=0x4): >> cookie=0x0, duration=430.063s, table=0, n_packets=2109130027, >>n_bytes=126547801620, idle_age=9, >>priority=50000,ip,in_port=1,nw_src=2.0.0.0/8,nw_dst=3.0.0.0/8 >>actions=output:2 >> cookie=0x0, duration=428.842s, table=0, n_packets=0, n_bytes=0, >>idle_age=428, in_port=1 actions=output:2 >> >>Regards, >>Bhanu Prakash. >> >> Or did I misconfigure something? >>>I'd really appreciate your help! >>> >>>Thanks, >>>An
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