Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030476AbVIAWaM (ORCPT ); Thu, 1 Sep 2005 18:30:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030479AbVIAWaL (ORCPT ); Thu, 1 Sep 2005 18:30:11 -0400 Received: from ns1.limegroup.com ([64.48.93.2]:50698 "EHLO ns1.limegroup.com") by vger.kernel.org with ESMTP id S1030476AbVIAWaG (ORCPT ); Thu, 1 Sep 2005 18:30:06 -0400 Date: Thu, 1 Sep 2005 18:30:04 -0400 (EDT) From: Ion Badulescu X-X-Sender: ion@guppy.limebrokerage.com To: linux-kernel@vger.kernel.org cc: linux-net@vger.kernel.org Subject: Possible BUG in IPv4 TCP window handling, all recent 2.4.x/2.6.x kernels Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 93301 Lines: 756 Hello, I've been tracking down this bug for some time, and I'm fairly convinced at this point that it's a kernel bug. Under certain conditions, the TCP stack starts shrinking the TCP window down to some ridiculously low values (hundreds of bytes, as low as 181) and never recovers. The certain conditions I mentioned are not well understood at this point, but they include a long-lived connection with a very one-sided, fluctuating traffic flowing through it. So far I've been able to reproduce it on plain-vanilla 2.4.9, 2.4.11.9, and 2.4.12.2, as well as on the RHEL3 kernels 2.4.21-20 and 2.4.21-31. The hardware is dual Opteron 250, running both 32- and 64-bit SMP kernels (seems to make no difference). I've also seen the bug occur on a single Athlon XP running 2.6.11.9 UP. The bug occurs with all sysctl settings at their default values. I've tried enabling and disabling pretty much all the tcp-related sysctl's in /proc/sys/net/ipv4, to no visible improvement. Here are a few tcpdump snippets of a TCP connection exhibiting the bug (the complete tcpdump is available upon request, but it's very large). 10.2.20.246 is the data receiver and is the box exhibiting the bug (I'm not sure what 10.2.224.182 is running, I don't have access to it). The data being sent through is real-time financial data; the session begins by catching up (at line speed) to present time, then continues to receive real-time data as it is being generated. For what it's worth, we've never been seen the bug occur while the session is still catching up (and receiving a few large packets at a time); it always seems to happen while receiving real-time data (many small packets, variably interspaced). [I apologize for the amount of tcpdump data, but it's the only way to show the bug in action.] 11:29:54.961998 10.2.20.246.33060 > 10.2.224.182.8700: S 1972343059:1972343059(0) win 5840 (DF) 11:29:54.983334 10.2.224.182.8700 > 10.2.20.246.33060: S 2770690746:2770690746(0) ack 1972343060 win 33304 (DF) 11:29:54.983377 10.2.20.246.33060 > 10.2.224.182.8700: . ack 1 win 1460 (DF) 11:29:54.988541 10.2.20.246.33060 > 10.2.224.182.8700: P 1:36(35) ack 1 win 1460 (DF) 11:29:55.009013 10.2.224.182.8700 > 10.2.20.246.33060: . ack 36 win 33304 (DF) 11:29:55.009014 10.2.224.182.8700 > 10.2.20.246.33060: P 1:11(10) ack 36 win 33304 (DF) 11:29:55.009035 10.2.20.246.33060 > 10.2.224.182.8700: . ack 11 win 1460 (DF) 11:29:55.177838 10.2.224.182.8700 > 10.2.20.246.33060: P 11:1087(1076) ack 36 win 33304 (DF) 11:29:55.177869 10.2.20.246.33060 > 10.2.224.182.8700: . ack 1087 win 1998 (DF) 11:29:55.180946 10.2.224.182.8700 > 10.2.20.246.33060: P 1087:2195(1108) ack 36 win 33304 (DF) 11:29:55.180972 10.2.20.246.33060 > 10.2.224.182.8700: . ack 2195 win 2552 (DF) 11:29:55.181214 10.2.224.182.8700 > 10.2.20.246.33060: P 2195:3299(1104) ack 36 win 33304 (DF) 11:29:55.181224 10.2.20.246.33060 > 10.2.224.182.8700: . ack 3299 win 3106 (DF) 11:29:55.184055 10.2.224.182.8700 > 10.2.20.246.33060: P 3299:4395(1096) ack 36 win 33304 (DF) 11:29:55.184077 10.2.20.246.33060 > 10.2.224.182.8700: . ack 4395 win 3660 (DF) 11:29:55.187027 10.2.224.182.8700 > 10.2.20.246.33060: P 4395:5475(1080) ack 36 win 33304 (DF) 11:29:55.187041 10.2.20.246.33060 > 10.2.224.182.8700: . ack 5475 win 4214 (DF) 11:29:55.201220 10.2.224.182.8700 > 10.2.20.246.33060: . 5475:6567(1092) ack 36 win 33304 (DF) 11:29:55.201241 10.2.20.246.33060 > 10.2.224.182.8700: . ack 6567 win 4768 (DF) 11:29:55.204192 10.2.224.182.8700 > 10.2.20.246.33060: . 6567:7679(1112) ack 36 win 33304 (DF) 11:29:55.204199 10.2.20.246.33060 > 10.2.224.182.8700: . ack 7679 win 5324 (DF) 11:29:55.204597 10.2.224.182.8700 > 10.2.20.246.33060: . 7679:8795(1116) ack 36 win 33304 (DF) 11:29:55.204603 10.2.20.246.33060 > 10.2.224.182.8700: . ack 8795 win 5882 (DF) 11:29:55.207570 10.2.224.182.8700 > 10.2.20.246.33060: . 8795:9903(1108) ack 36 win 33304 (DF) 11:29:55.207576 10.2.20.246.33060 > 10.2.224.182.8700: . ack 9903 win 6440 (DF) 11:29:55.210409 10.2.224.182.8700 > 10.2.20.246.33060: . 9903:11007(1104) ack 36 win 33304 (DF) 11:29:55.210416 10.2.20.246.33060 > 10.2.224.182.8700: . ack 11007 win 6998 (DF) 11:29:55.210814 10.2.224.182.8700 > 10.2.20.246.33060: . 11007:12107(1100) ack 36 win 33304 (DF) 11:29:55.210820 10.2.20.246.33060 > 10.2.224.182.8700: . ack 12107 win 7556 (DF) 11:29:55.213653 10.2.224.182.8700 > 10.2.20.246.33060: . 12107:13195(1088) ack 36 win 33304 (DF) 11:29:55.213661 10.2.20.246.33060 > 10.2.224.182.8700: . ack 13195 win 8114 (DF) 11:29:55.216627 10.2.224.182.8700 > 10.2.20.246.33060: . 13195:14307(1112) ack 36 win 33304 (DF) 11:29:55.216634 10.2.20.246.33060 > 10.2.224.182.8700: . ack 14307 win 8192 (DF) The connection is established and the receiver's TCP window quickly ramps up to 8192. 11:29:55.670998 10.2.20.246.33060 > 10.2.224.182.8700: . ack 254767 win 9862 (DF) 11:29:55.674027 10.2.224.182.8700 > 10.2.20.246.33060: . 254767:255867(1100) ack 36 win 33304 (DF) 11:29:55.674027 10.2.224.182.8700 > 10.2.20.246.33060: . 255867:256943(1076) ack 36 win 33304 (DF) 11:29:55.674035 10.2.20.246.33060 > 10.2.224.182.8700: . ack 256943 win 9862 (DF) 11:29:55.677000 10.2.224.182.8700 > 10.2.20.246.33060: . 256943:258039(1096) ack 36 win 33304 (DF) 11:29:55.677005 10.2.20.246.33060 > 10.2.224.182.8700: . ack 258039 win 10416 (DF) 11:29:55.680109 10.2.224.182.8700 > 10.2.20.246.33060: . 258039:259143(1104) ack 36 win 33304 (DF) 11:29:55.680114 10.2.20.246.33060 > 10.2.224.182.8700: . ack 259143 win 10970 (DF) 11:29:55.680244 10.2.224.182.8700 > 10.2.20.246.33060: . 259143:260251(1108) ack 36 win 33304 (DF) 11:29:55.680249 10.2.20.246.33060 > 10.2.224.182.8700: . ack 260251 win 11524 (DF) 11:29:55.683218 10.2.224.182.8700 > 10.2.20.246.33060: . 260251:261339(1088) ack 36 win 33304 (DF) 11:29:55.683223 10.2.20.246.33060 > 10.2.224.182.8700: . ack 261339 win 12078 (DF) 11:29:55.686192 10.2.224.182.8700 > 10.2.20.246.33060: . 261339:262423(1084) ack 36 win 33304 (DF) 11:29:55.686196 10.2.20.246.33060 > 10.2.224.182.8700: . ack 262423 win 12632 (DF) 11:29:55.686327 10.2.224.182.8700 > 10.2.20.246.33060: . 262423:263527(1104) ack 36 win 33304 (DF) 11:29:55.686332 10.2.20.246.33060 > 10.2.224.182.8700: . ack 263527 win 13186 (DF) 11:29:55.689300 10.2.224.182.8700 > 10.2.20.246.33060: . 263527:264643(1116) ack 36 win 33304 (DF) 11:29:55.689305 10.2.20.246.33060 > 10.2.224.182.8700: . ack 264643 win 13744 (DF) 11:29:55.692409 10.2.224.182.8700 > 10.2.20.246.33060: . 264643:265723(1080) ack 36 win 33304 (DF) 11:29:55.692414 10.2.20.246.33060 > 10.2.224.182.8700: . ack 265723 win 14302 (DF) 11:29:55.692544 10.2.224.182.8700 > 10.2.20.246.33060: . 265723:266827(1104) ack 36 win 33304 (DF) 11:29:55.692550 10.2.20.246.33060 > 10.2.224.182.8700: . ack 266827 win 14860 (DF) 11:29:55.695518 10.2.224.182.8700 > 10.2.20.246.33060: . 266827:267919(1092) ack 36 win 33304 (DF) 11:29:55.695523 10.2.20.246.33060 > 10.2.224.182.8700: . ack 267919 win 15418 (DF) 11:29:55.698627 10.2.224.182.8700 > 10.2.20.246.33060: . 267919:269031(1112) ack 36 win 33304 (DF) 11:29:55.698632 10.2.20.246.33060 > 10.2.224.182.8700: . ack 269031 win 15976 (DF) 11:29:55.698627 10.2.224.182.8700 > 10.2.20.246.33060: . 269031:270135(1104) ack 36 win 33304 (DF) 11:29:55.698637 10.2.20.246.33060 > 10.2.224.182.8700: . ack 270135 win 16534 (DF) 11:29:55.701736 10.2.224.182.8700 > 10.2.20.246.33060: . 270135:271239(1104) ack 36 win 33304 (DF) 11:29:55.704709 10.2.224.182.8700 > 10.2.20.246.33060: . 271239:272339(1100) ack 36 win 33304 (DF) 11:29:55.704715 10.2.20.246.33060 > 10.2.224.182.8700: . ack 272339 win 16534 (DF) 11:29:55.704845 10.2.224.182.8700 > 10.2.20.246.33060: . 272339:273439(1100) ack 36 win 33304 (DF) 11:29:55.707818 10.2.224.182.8700 > 10.2.20.246.33060: . 273439:274527(1088) ack 36 win 33304 (DF) 11:29:55.707823 10.2.20.246.33060 > 10.2.224.182.8700: . ack 274527 win 16534 (DF) Shortly thereafter the TCP window increases further to 16534. It remains around 16534 for the next 5 minutes or so. 11:31:09.326407 10.2.224.182.8700 > 10.2.20.246.33060: . 38665207:38666651(1444) ack 38 win 33304 (DF) 11:31:09.330332 10.2.224.182.8700 > 10.2.20.246.33060: . 38666651:38668063(1412) ack 38 win 33304 (DF) 11:31:09.330348 10.2.20.246.33060 > 10.2.224.182.8700: . ack 38668063 win 16534 (DF) 11:31:09.330461 10.2.224.182.8700 > 10.2.20.246.33060: . 38668063:38669295(1232) ack 38 win 33304 (DF) 11:31:09.333340 10.2.224.182.8700 > 10.2.20.246.33060: . 38669295:38670375(1080) ack 38 win 33304 (DF) 11:31:09.333351 10.2.20.246.33060 > 10.2.224.182.8700: . ack 38670375 win 16534 (DF) 11:31:09.337265 10.2.224.182.8700 > 10.2.20.246.33060: . 38670375:38671807(1432) ack 38 win 33304 (DF) 11:31:09.337395 10.2.224.182.8700 > 10.2.20.246.33060: . 38671807:38672659(852) ack 38 win 33304 (DF) 11:31:09.337401 10.2.20.246.33060 > 10.2.224.182.8700: . ack 38672659 win 16534 (DF) 11:31:09.340011 10.2.224.182.8700 > 10.2.20.246.33060: P 38672659:38673643(984) ack 38 win 33304 (DF) 11:31:09.340796 10.2.224.182.8700 > 10.2.20.246.33060: P 38673643:38673963(320) ack 38 win 33304 (DF) 11:31:09.340925 10.2.224.182.8700 > 10.2.20.246.33060: P 38673963:38674051(88) ack 38 win 33304 (DF) 11:31:09.341056 10.2.224.182.8700 > 10.2.20.246.33060: P 38674051:38674083(32) ack 38 win 33304 (DF) 11:31:09.341318 10.2.224.182.8700 > 10.2.20.246.33060: P 38674083:38674115(32) ack 38 win 33304 (DF) 11:31:09.341324 10.2.20.246.33060 > 10.2.224.182.8700: . ack 38674115 win 16534 (DF) 11:31:09.341449 10.2.224.182.8700 > 10.2.20.246.33060: P 38674115:38674419(304) ack 38 win 33304 (DF) 11:31:09.344196 10.2.224.182.8700 > 10.2.20.246.33060: P 38674419:38675375(956) ack 38 win 33304 (DF) 11:31:09.344327 10.2.224.182.8700 > 10.2.20.246.33060: P 38675375:38675407(32) ack 38 win 33304 (DF) 11:31:09.344328 10.2.224.182.8700 > 10.2.20.246.33060: P 38675407:38675439(32) ack 38 win 33304 (DF) 11:31:09.344719 10.2.224.182.8700 > 10.2.20.246.33060: P 38675439:38675483(44) ack 38 win 33304 (DF) 11:31:09.344981 10.2.224.182.8700 > 10.2.20.246.33060: P 38675483:38675527(44) ack 38 win 33304 (DF) 11:31:09.345243 10.2.224.182.8700 > 10.2.20.246.33060: P 38675527:38676603(1076) ack 38 win 33304 (DF) 11:31:09.345250 10.2.20.246.33060 > 10.2.224.182.8700: . ack 38676603 win 16534 (DF) A few minutes later it has finally caught up to present time and it starts receiving smaller packets containing real-time data. The TCP window is still 16534 at this point. 11:34:54.337155 10.2.224.182.8700 > 10.2.20.246.33060: P 84402363:84402527(164) ack 44 win 33304 (DF) 11:34:54.337167 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84402527 win 15340 (DF) 11:34:54.337485 10.2.224.182.8700 > 10.2.20.246.33060: P 84402527:84402615(88) ack 44 win 33304 (DF) 11:34:54.337982 10.2.224.182.8700 > 10.2.20.246.33060: P 84402615:84402703(88) ack 44 win 33304 (DF) 11:34:54.337983 10.2.224.182.8700 > 10.2.20.246.33060: P 84402703:84402747(44) ack 44 win 33304 (DF) 11:34:54.339639 10.2.224.182.8700 > 10.2.20.246.33060: P 84402747:84403279(532) ack 44 win 33304 (DF) 11:34:54.339645 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84403279 win 15152 (DF) 11:34:54.339804 10.2.224.182.8700 > 10.2.20.246.33060: P 84403279:84403323(44) ack 44 win 33304 (DF) 11:34:54.339969 10.2.224.182.8700 > 10.2.20.246.33060: P 84403323:84403903(580) ack 44 win 33304 (DF) 11:34:54.339974 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84403903 win 14996 (DF) 11:34:54.340798 10.2.224.182.8700 > 10.2.20.246.33060: P 84403903:84404175(272) ack 44 win 33304 (DF) 11:34:54.348421 10.2.224.182.8700 > 10.2.20.246.33060: P 84404175:84404951(776) ack 44 win 33304 (DF) 11:34:54.348900 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84404951 win 14734 (DF) 11:34:54.349743 10.2.224.182.8700 > 10.2.20.246.33060: P 84404951:84405435(484) ack 44 win 33304 (DF) 11:34:54.349744 10.2.224.182.8700 > 10.2.20.246.33060: P 84405435:84405523(88) ack 44 win 33304 (DF) 11:34:54.349908 10.2.224.182.8700 > 10.2.20.246.33060: P 84405523:84405599(76) ack 44 win 33304 (DF) 11:34:54.350240 10.2.224.182.8700 > 10.2.20.246.33060: P 84405599:84405643(44) ack 44 win 33304 (DF) 11:34:54.350405 10.2.224.182.8700 > 10.2.20.246.33060: P 84405643:84405995(352) ack 44 win 33304 (DF) 11:34:54.351324 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84405995 win 14473 (DF) 11:34:54.357033 10.2.224.182.8700 > 10.2.20.246.33060: P 84405995:84406471(476) ack 44 win 33304 (DF) 11:34:54.357727 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84406471 win 14354 (DF) 11:34:54.359183 10.2.224.182.8700 > 10.2.20.246.33060: P 84406471:84406911(440) ack 44 win 33304 (DF) 11:34:54.359349 10.2.224.182.8700 > 10.2.20.246.33060: P 84406911:84406955(44) ack 44 win 33304 (DF) 11:34:54.359514 10.2.224.182.8700 > 10.2.20.246.33060: P 84406955:84407043(88) ack 44 win 33304 (DF) 11:34:54.359846 10.2.224.182.8700 > 10.2.20.246.33060: P 84407043:84407087(44) ack 44 win 33304 (DF) 11:34:54.360343 10.2.224.182.8700 > 10.2.20.246.33060: P 84407087:84407263(176) ack 44 win 33304 (DF) 11:34:54.360344 10.2.224.182.8700 > 10.2.20.246.33060: P 84407263:84407307(44) ack 44 win 33304 (DF) 11:34:54.360509 10.2.224.182.8700 > 10.2.20.246.33060: P 84407307:84407351(44) ack 44 win 33304 (DF) 11:34:54.360840 10.2.224.182.8700 > 10.2.20.246.33060: P 84407351:84407395(44) ack 44 win 33304 (DF) 11:34:54.364983 10.2.224.182.8700 > 10.2.20.246.33060: P 84407395:84407603(208) ack 44 win 33304 (DF) 11:34:54.367898 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84407603 win 14071 (DF) 11:34:54.367962 10.2.224.182.8700 > 10.2.20.246.33060: P 84407603:84408091(488) ack 44 win 33304 (DF) 11:34:54.368046 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84408091 win 13949 (DF) 11:34:54.369453 10.2.224.182.8700 > 10.2.20.246.33060: P 84408091:84408607(516) ack 44 win 33304 (DF) 11:34:54.369454 10.2.224.182.8700 > 10.2.20.246.33060: P 84408607:84408651(44) ack 44 win 33304 (DF) 11:34:54.369504 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84408651 win 13809 (DF) 11:34:54.371275 10.2.224.182.8700 > 10.2.20.246.33060: P 84408651:84409223(572) ack 44 win 33304 (DF) 11:34:54.371295 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84409223 win 13666 (DF) 11:34:54.371771 10.2.224.182.8700 > 10.2.20.246.33060: P 84409223:84409375(152) ack 44 win 33304 (DF) 11:34:54.371772 10.2.224.182.8700 > 10.2.20.246.33060: P 84409375:84409439(64) ack 44 win 33304 (DF) 11:34:54.371790 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84409439 win 13612 (DF) 11:34:54.372268 10.2.224.182.8700 > 10.2.20.246.33060: P 84409439:84409471(32) ack 44 win 33304 (DF) 11:34:54.372282 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84409471 win 13604 (DF) 11:34:54.374090 10.2.224.182.8700 > 10.2.20.246.33060: P 84409471:84409515(44) ack 44 win 33304 (DF) 11:34:54.374108 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84409515 win 13593 (DF) 11:34:54.378071 10.2.224.182.8700 > 10.2.20.246.33060: P 84409515:84409967(452) ack 44 win 33304 (DF) 11:34:54.378124 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84409967 win 13480 (DF) 11:34:54.378231 10.2.224.182.8700 > 10.2.20.246.33060: P 84409967:84410011(44) ack 44 win 33304 (DF) 11:34:54.378382 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84410011 win 13469 (DF) 11:34:54.380218 10.2.224.182.8700 > 10.2.20.246.33060: P 84410011:84410379(368) ack 44 win 33304 (DF) 11:34:54.380256 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84410379 win 13377 (DF) 11:34:54.384362 10.2.224.182.8700 > 10.2.20.246.33060: P 84410379:84411175(796) ack 44 win 33304 (DF) 11:34:54.384364 10.2.224.182.8700 > 10.2.20.246.33060: P 84411175:84411207(32) ack 44 win 33304 (DF) 11:34:54.384419 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84411207 win 13170 (DF) 11:34:54.385353 10.2.224.182.8700 > 10.2.20.246.33060: P 84411207:84411519(312) ack 44 win 33304 (DF) 11:34:54.385368 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84411519 win 13092 (DF) 11:34:54.387341 10.2.224.182.8700 > 10.2.20.246.33060: P 84411519:84412191(672) ack 44 win 33304 (DF) 11:34:54.387342 10.2.224.182.8700 > 10.2.20.246.33060: P 84412191:84412483(292) ack 44 win 33304 (DF) 11:34:54.387422 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84412483 win 12851 (DF) 11:34:54.387671 10.2.224.182.8700 > 10.2.20.246.33060: P 84412483:84412591(108) ack 44 win 33304 (DF) 11:34:54.387690 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84412591 win 12824 (DF) 11:34:54.388168 10.2.224.182.8700 > 10.2.20.246.33060: P 84412591:84412679(88) ack 44 win 33304 (DF) 11:34:54.388169 10.2.224.182.8700 > 10.2.20.246.33060: P 84412679:84412711(32) ack 44 win 33304 (DF) 11:34:54.388186 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84412711 win 12794 (DF) 11:34:54.388831 10.2.224.182.8700 > 10.2.20.246.33060: P 84412711:84412883(172) ack 44 win 33304 (DF) 11:34:54.388847 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84412883 win 12751 (DF) 11:34:54.389990 10.2.224.182.8700 > 10.2.20.246.33060: P 84412883:84413271(388) ack 44 win 33304 (DF) 11:34:54.389991 10.2.224.182.8700 > 10.2.20.246.33060: P 84413271:84413303(32) ack 44 win 33304 (DF) 11:34:54.390010 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84413303 win 12646 (DF) 11:34:54.390819 10.2.224.182.8700 > 10.2.20.246.33060: P 84413303:84413527(224) ack 44 win 33304 (DF) 11:34:54.390834 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84413527 win 12590 (DF) 11:34:54.391150 10.2.224.182.8700 > 10.2.20.246.33060: P 84413527:84413559(32) ack 44 win 33304 (DF) 11:34:54.391151 10.2.224.182.8700 > 10.2.20.246.33060: P 84413559:84413591(32) ack 44 win 33304 (DF) 11:34:54.391169 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84413591 win 12574 (DF) 11:34:54.391647 10.2.224.182.8700 > 10.2.20.246.33060: P 84413591:84413719(128) ack 44 win 33304 (DF) 11:34:54.391660 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84413719 win 12542 (DF) 11:34:54.391978 10.2.224.182.8700 > 10.2.20.246.33060: P 84413719:84413783(64) ack 44 win 33304 (DF) 11:34:54.391979 10.2.224.182.8700 > 10.2.20.246.33060: P 84413783:84413815(32) ack 44 win 33304 (DF) 11:34:54.391997 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84413815 win 12518 (DF) 11:34:54.392309 10.2.224.182.8700 > 10.2.20.246.33060: P 84413815:84413847(32) ack 44 win 33304 (DF) 11:34:54.392322 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84413847 win 12510 (DF) 11:34:54.392475 10.2.224.182.8700 > 10.2.20.246.33060: P 84413847:84413879(32) ack 44 win 33304 (DF) 11:34:54.392488 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84413879 win 12502 (DF) 11:34:54.394795 10.2.224.182.8700 > 10.2.20.246.33060: P 84413879:84414331(452) ack 44 win 33304 (DF) 11:34:54.394829 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84414331 win 12389 (DF) 11:34:54.395456 10.2.224.182.8700 > 10.2.20.246.33060: P 84414331:84414547(216) ack 44 win 33304 (DF) 11:34:54.395457 10.2.224.182.8700 > 10.2.20.246.33060: P 84414547:84414591(44) ack 44 win 33304 (DF) 11:34:54.395475 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84414591 win 12324 (DF) 11:34:54.395953 10.2.224.182.8700 > 10.2.20.246.33060: P 84414591:84414711(120) ack 44 win 33304 (DF) 11:34:54.395966 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84414711 win 12294 (DF) 11:34:54.396284 10.2.224.182.8700 > 10.2.20.246.33060: P 84414711:84414755(44) ack 44 win 33304 (DF) 11:34:54.396285 10.2.224.182.8700 > 10.2.20.246.33060: P 84414755:84414787(32) ack 44 win 33304 (DF) 11:34:54.396302 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84414787 win 12275 (DF) 11:34:54.396615 10.2.224.182.8700 > 10.2.20.246.33060: P 84414787:84414831(44) ack 44 win 33304 (DF) 11:34:54.396628 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84414831 win 12264 (DF) 11:34:54.396947 10.2.224.182.8700 > 10.2.20.246.33060: P 84414831:84414907(76) ack 44 win 33304 (DF) 11:34:54.396948 10.2.224.182.8700 > 10.2.20.246.33060: P 84414907:84414951(44) ack 44 win 33304 (DF) 11:34:54.396965 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84414951 win 12234 (DF) 11:34:54.397278 10.2.224.182.8700 > 10.2.20.246.33060: P 84414951:84414983(32) ack 44 win 33304 (DF) 11:34:54.397292 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84414983 win 12226 (DF) 11:34:54.397609 10.2.224.182.8700 > 10.2.20.246.33060: P 84414983:84415015(32) ack 44 win 33304 (DF) 11:34:54.397610 10.2.224.182.8700 > 10.2.20.246.33060: P 84415015:84415059(44) ack 44 win 33304 (DF) 11:34:54.397626 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415059 win 12207 (DF) 11:34:54.397941 10.2.224.182.8700 > 10.2.20.246.33060: P 84415059:84415103(44) ack 44 win 33304 (DF) 11:34:54.397953 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415103 win 12196 (DF) 11:34:54.398271 10.2.224.182.8700 > 10.2.20.246.33060: P 84415103:84415167(64) ack 44 win 33304 (DF) 11:34:54.398272 10.2.224.182.8700 > 10.2.20.246.33060: P 84415167:84415427(260) ack 44 win 33304 (DF) 11:34:54.398289 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415427 win 12115 (DF) 11:34:54.398768 10.2.224.182.8700 > 10.2.20.246.33060: P 84415427:84415535(108) ack 44 win 33304 (DF) 11:34:54.398782 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415535 win 12088 (DF) 11:34:54.398934 10.2.224.182.8700 > 10.2.20.246.33060: P 84415535:84415567(32) ack 44 win 33304 (DF) 11:34:54.398947 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415567 win 12080 (DF) 11:34:54.399100 10.2.224.182.8700 > 10.2.20.246.33060: P 84415567:84415599(32) ack 44 win 33304 (DF) 11:34:54.399113 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415599 win 12072 (DF) 11:34:54.399265 10.2.224.182.8700 > 10.2.20.246.33060: P 84415599:84415631(32) ack 44 win 33304 (DF) 11:34:54.399279 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415631 win 12064 (DF) 11:34:54.399597 10.2.224.182.8700 > 10.2.20.246.33060: P 84415631:84415695(64) ack 44 win 33304 (DF) 11:34:54.399610 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415695 win 12048 (DF) 11:34:54.399762 10.2.224.182.8700 > 10.2.20.246.33060: P 84415695:84415727(32) ack 44 win 33304 (DF) 11:34:54.399775 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415727 win 12040 (DF) 11:34:54.400425 10.2.224.182.8700 > 10.2.20.246.33060: P 84415727:84415935(208) ack 44 win 33304 (DF) 11:34:54.400446 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415935 win 11988 (DF) 11:34:54.400757 10.2.224.182.8700 > 10.2.20.246.33060: P 84415935:84415979(44) ack 44 win 33304 (DF) 11:34:54.401418 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84415979 win 11977 (DF) 11:34:54.403574 10.2.224.182.8700 > 10.2.20.246.33060: P 84415979:84416107(128) ack 44 win 33304 (DF) 11:34:54.403604 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416107 win 11945 (DF) 11:34:54.404401 10.2.224.182.8700 > 10.2.20.246.33060: P 84416107:84416267(160) ack 44 win 33304 (DF) 11:34:54.404415 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416267 win 11905 (DF) 11:34:54.404732 10.2.224.182.8700 > 10.2.20.246.33060: P 84416267:84416311(44) ack 44 win 33304 (DF) 11:34:54.404732 10.2.224.182.8700 > 10.2.20.246.33060: P 84416311:84416343(32) ack 44 win 33304 (DF) 11:34:54.404750 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416343 win 11886 (DF) 11:34:54.405228 10.2.224.182.8700 > 10.2.20.246.33060: P 84416343:84416439(96) ack 44 win 33304 (DF) 11:34:54.405244 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416439 win 11862 (DF) 11:34:54.405394 10.2.224.182.8700 > 10.2.20.246.33060: P 84416439:84416471(32) ack 44 win 33304 (DF) 11:34:54.405407 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416471 win 11854 (DF) 11:34:54.405891 10.2.224.182.8700 > 10.2.20.246.33060: P 84416471:84416643(172) ack 44 win 33304 (DF) 11:34:54.405904 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416643 win 11811 (DF) 11:34:54.406222 10.2.224.182.8700 > 10.2.20.246.33060: P 84416643:84416707(64) ack 44 win 33304 (DF) 11:34:54.406223 10.2.224.182.8700 > 10.2.20.246.33060: P 84416707:84416739(32) ack 44 win 33304 (DF) 11:34:54.406240 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416739 win 11787 (DF) 11:34:54.406553 10.2.224.182.8700 > 10.2.20.246.33060: P 84416739:84416771(32) ack 44 win 33304 (DF) 11:34:54.406568 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416771 win 11779 (DF) 11:34:54.406719 10.2.224.182.8700 > 10.2.20.246.33060: P 84416771:84416803(32) ack 44 win 33304 (DF) 11:34:54.406732 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416803 win 11771 (DF) 11:34:54.406884 10.2.224.182.8700 > 10.2.20.246.33060: P 84416803:84416835(32) ack 44 win 33304 (DF) 11:34:54.406898 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416835 win 11763 (DF) 11:34:54.407050 10.2.224.182.8700 > 10.2.20.246.33060: P 84416835:84416867(32) ack 44 win 33304 (DF) 11:34:54.407062 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416867 win 11755 (DF) 11:34:54.407381 10.2.224.182.8700 > 10.2.20.246.33060: P 84416867:84416931(64) ack 44 win 33304 (DF) 11:34:54.407394 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416931 win 11739 (DF) 11:34:54.407547 10.2.224.182.8700 > 10.2.20.246.33060: P 84416931:84416995(64) ack 44 win 33304 (DF) 11:34:54.407560 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84416995 win 11723 (DF) 11:34:54.407878 10.2.224.182.8700 > 10.2.20.246.33060: P 84416995:84417071(76) ack 44 win 33304 (DF) 11:34:54.407891 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84417071 win 11704 (DF) 11:34:54.408209 10.2.224.182.8700 > 10.2.20.246.33060: P 84417071:84417147(76) ack 44 win 33304 (DF) 11:34:54.408223 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84417147 win 11685 (DF) 11:34:54.408375 10.2.224.182.8700 > 10.2.20.246.33060: P 84417147:84417255(108) ack 44 win 33304 (DF) 11:34:54.408388 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84417255 win 11658 (DF) 11:34:54.408706 10.2.224.182.8700 > 10.2.20.246.33060: P 84417255:84417331(76) ack 44 win 33304 (DF) 11:34:54.408719 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84417331 win 11639 (DF) 11:34:54.408872 10.2.224.182.8700 > 10.2.20.246.33060: P 84417331:84417363(32) ack 44 win 33304 (DF) 11:34:54.408885 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84417363 win 11631 (DF) 11:34:54.409369 10.2.224.182.8700 > 10.2.20.246.33060: P 84417363:84417439(76) ack 44 win 33304 (DF) 11:34:54.409383 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84417439 win 11612 (DF) 11:34:54.411192 10.2.224.182.8700 > 10.2.20.246.33060: P 84417439:84417515(76) ack 44 win 33304 (DF) 11:34:54.411210 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84417515 win 11593 (DF) 11:34:54.411357 10.2.224.182.8700 > 10.2.20.246.33060: P 84417515:84417591(76) ack 44 win 33304 (DF) 11:34:54.411371 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84417591 win 11574 (DF) 11:34:54.416661 10.2.224.182.8700 > 10.2.20.246.33060: P 84417591:84418059(468) ack 44 win 33304 (DF) 11:34:54.416754 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84418059 win 11457 (DF) 11:34:54.416987 10.2.224.182.8700 > 10.2.20.246.33060: P 84418059:84418167(108) ack 44 win 33304 (DF) 11:34:54.417018 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84418167 win 11430 (DF) 11:34:54.418148 10.2.224.182.8700 > 10.2.20.246.33060: P 84418167:84418439(272) ack 44 win 33304 (DF) 11:34:54.418187 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84418439 win 11362 (DF) 11:34:54.425439 10.2.224.182.8700 > 10.2.20.246.33060: P 84418439:84419327(888) ack 44 win 33304 (DF) 11:34:54.425503 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84419327 win 11140 (DF) 11:34:54.425601 10.2.224.182.8700 > 10.2.20.246.33060: P 84419327:84419391(64) ack 44 win 33304 (DF) 11:34:54.425642 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84419391 win 11124 (DF) 11:34:54.425932 10.2.224.182.8700 > 10.2.20.246.33060: P 84419391:84419575(184) ack 44 win 33304 (DF) 11:34:54.425946 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84419575 win 11078 (DF) 11:34:54.426263 10.2.224.182.8700 > 10.2.20.246.33060: P 84419575:84419639(64) ack 44 win 33304 (DF) 11:34:54.426264 10.2.224.182.8700 > 10.2.20.246.33060: P 84419639:84419671(32) ack 44 win 33304 (DF) 11:34:54.426287 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84419671 win 11054 (DF) 11:34:54.426594 10.2.224.182.8700 > 10.2.20.246.33060: P 84419671:84419715(44) ack 44 win 33304 (DF) 11:34:54.426607 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84419715 win 11043 (DF) 11:34:54.426926 10.2.224.182.8700 > 10.2.20.246.33060: P 84419715:84419759(44) ack 44 win 33304 (DF) 11:34:54.426938 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84419759 win 11032 (DF) 11:34:54.427257 10.2.224.182.8700 > 10.2.20.246.33060: P 84419759:84419923(164) ack 44 win 33304 (DF) 11:34:54.427258 10.2.224.182.8700 > 10.2.20.246.33060: P 84419923:84419955(32) ack 44 win 33304 (DF) 11:34:54.427274 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84419955 win 10983 (DF) 11:34:54.429742 10.2.224.182.8700 > 10.2.20.246.33060: P 84419955:84420627(672) ack 44 win 33304 (DF) 11:34:54.429782 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84420627 win 10815 (DF) 11:34:54.430238 10.2.224.182.8700 > 10.2.20.246.33060: P 84420627:84420735(108) ack 44 win 33304 (DF) 11:34:54.430253 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84420735 win 10788 (DF) 11:34:54.434216 10.2.224.182.8700 > 10.2.20.246.33060: P 84420735:84421487(752) ack 44 win 33304 (DF) 11:34:54.434266 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84421487 win 10600 (DF) 11:34:54.434876 10.2.224.182.8700 > 10.2.20.246.33060: P 84421487:84421755(268) ack 44 win 33304 (DF) 11:34:54.434877 10.2.224.182.8700 > 10.2.20.246.33060: P 84421755:84421939(184) ack 44 win 33304 (DF) 11:34:54.434903 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84421939 win 10487 (DF) 11:34:54.435042 10.2.224.182.8700 > 10.2.20.246.33060: P 84421939:84421971(32) ack 44 win 33304 (DF) 11:34:54.435071 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84421971 win 10479 (DF) 11:34:54.435372 10.2.224.182.8700 > 10.2.20.246.33060: P 84421971:84422015(44) ack 44 win 33304 (DF) 11:34:54.435386 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84422015 win 10468 (DF) 11:34:54.438356 10.2.224.182.8700 > 10.2.20.246.33060: P 84422015:84422555(540) ack 44 win 33304 (DF) 11:34:54.438392 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84422555 win 10333 (DF) 11:34:54.438520 10.2.224.182.8700 > 10.2.20.246.33060: P 84422555:84422631(76) ack 44 win 33304 (DF) 11:34:54.438623 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84422631 win 10314 (DF) 11:34:54.438851 10.2.224.182.8700 > 10.2.20.246.33060: P 84422631:84422771(140) ack 44 win 33304 (DF) 11:34:54.438865 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84422771 win 10279 (DF) 11:34:54.441170 10.2.224.182.8700 > 10.2.20.246.33060: P 84422771:84423063(292) ack 44 win 33304 (DF) 11:34:54.441197 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423063 win 10206 (DF) 11:34:54.441335 10.2.224.182.8700 > 10.2.20.246.33060: P 84423063:84423127(64) ack 44 win 33304 (DF) 11:34:54.441348 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423127 win 10190 (DF) 11:34:54.441998 10.2.224.182.8700 > 10.2.20.246.33060: P 84423127:84423323(196) ack 44 win 33304 (DF) 11:34:54.442012 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423323 win 10141 (DF) 11:34:54.442494 10.2.224.182.8700 > 10.2.20.246.33060: P 84423323:84423399(76) ack 44 win 33304 (DF) 11:34:54.442508 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423399 win 10122 (DF) 11:34:54.442826 10.2.224.182.8700 > 10.2.20.246.33060: P 84423399:84423487(88) ack 44 win 33304 (DF) 11:34:54.442827 10.2.224.182.8700 > 10.2.20.246.33060: P 84423487:84423519(32) ack 44 win 33304 (DF) 11:34:54.442844 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423519 win 10092 (DF) 11:34:54.443324 10.2.224.182.8700 > 10.2.20.246.33060: P 84423519:84423615(96) ack 44 win 33304 (DF) 11:34:54.443346 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423615 win 10068 (DF) 11:34:54.443655 10.2.224.182.8700 > 10.2.20.246.33060: P 84423615:84423659(44) ack 44 win 33304 (DF) 11:34:54.443668 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423659 win 10057 (DF) 11:34:54.443821 10.2.224.182.8700 > 10.2.20.246.33060: P 84423659:84423767(108) ack 44 win 33304 (DF) 11:34:54.443834 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423767 win 10030 (DF) 11:34:54.444316 10.2.224.182.8700 > 10.2.20.246.33060: P 84423767:84423887(120) ack 44 win 33304 (DF) 11:34:54.444331 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423887 win 10000 (DF) 11:34:54.444482 10.2.224.182.8700 > 10.2.20.246.33060: P 84423887:84423963(76) ack 44 win 33304 (DF) 11:34:54.444495 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84423963 win 9981 (DF) 11:34:54.444813 10.2.224.182.8700 > 10.2.20.246.33060: P 84423963:84424071(108) ack 44 win 33304 (DF) 11:34:54.444827 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84424071 win 9954 (DF) 11:34:54.444979 10.2.224.182.8700 > 10.2.20.246.33060: P 84424071:84424103(32) ack 44 win 33304 (DF) 11:34:54.444992 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84424103 win 9946 (DF) 11:34:54.445973 10.2.224.182.8700 > 10.2.20.246.33060: P 84424103:84424387(284) ack 44 win 33304 (DF) 11:34:54.445987 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84424387 win 9875 (DF) 11:34:54.457736 10.2.224.182.8700 > 10.2.20.246.33060: P 84424387:84425471(1084) ack 44 win 33304 (DF) 11:34:54.457799 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84425471 win 9604 (DF) 11:34:54.458063 10.2.224.182.8700 > 10.2.20.246.33060: P 84425471:84425667(196) ack 44 win 33304 (DF) 11:34:54.458064 10.2.224.182.8700 > 10.2.20.246.33060: P 84425667:84425699(32) ack 44 win 33304 (DF) 11:34:54.458088 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84425699 win 9547 (DF) 11:34:54.458561 10.2.224.182.8700 > 10.2.20.246.33060: P 84425699:84425807(108) ack 44 win 33304 (DF) 11:34:54.458575 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84425807 win 9520 (DF) 11:34:54.458892 10.2.224.182.8700 > 10.2.20.246.33060: P 84425807:84425895(88) ack 44 win 33304 (DF) 11:34:54.458892 10.2.224.182.8700 > 10.2.20.246.33060: P 84425895:84425939(44) ack 44 win 33304 (DF) 11:34:54.458909 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84425939 win 9487 (DF) 11:34:54.459224 10.2.224.182.8700 > 10.2.20.246.33060: P 84425939:84425971(32) ack 44 win 33304 (DF) 11:34:54.459555 10.2.224.182.8700 > 10.2.20.246.33060: P 84425971:84426003(32) ack 44 win 33304 (DF) 11:34:54.459556 10.2.224.182.8700 > 10.2.20.246.33060: P 84426003:84426079(76) ack 44 win 33304 (DF) 11:34:54.459587 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426079 win 9452 (DF) 11:34:54.459886 10.2.224.182.8700 > 10.2.20.246.33060: P 84426079:84426143(64) ack 44 win 33304 (DF) 11:34:54.459900 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426143 win 9436 (DF) 11:34:54.460217 10.2.224.182.8700 > 10.2.20.246.33060: P 84426143:84426175(32) ack 44 win 33304 (DF) 11:34:54.460218 10.2.224.182.8700 > 10.2.20.246.33060: P 84426175:84426251(76) ack 44 win 33304 (DF) 11:34:54.460714 10.2.224.182.8700 > 10.2.20.246.33060: P 84426251:84426359(108) ack 44 win 33304 (DF) 11:34:54.460879 10.2.224.182.8700 > 10.2.20.246.33060: P 84426359:84426403(44) ack 44 win 33304 (DF) 11:34:54.461045 10.2.224.182.8700 > 10.2.20.246.33060: P 84426403:84426435(32) ack 44 win 33304 (DF) 11:34:54.461211 10.2.224.182.8700 > 10.2.20.246.33060: P 84426435:84426479(44) ack 44 win 33304 (DF) 11:34:54.461542 10.2.224.182.8700 > 10.2.20.246.33060: P 84426479:84426523(44) ack 44 win 33304 (DF) 11:34:54.461542 10.2.224.182.8700 > 10.2.20.246.33060: P 84426523:84426555(32) ack 44 win 33304 (DF) 11:34:54.461873 10.2.224.182.8700 > 10.2.20.246.33060: P 84426555:84426599(44) ack 44 win 33304 (DF) 11:34:54.462204 10.2.224.182.8700 > 10.2.20.246.33060: P 84426599:84426631(32) ack 44 win 33304 (DF) 11:34:54.462205 10.2.224.182.8700 > 10.2.20.246.33060: P 84426631:84426707(76) ack 44 win 33304 (DF) 11:34:54.462535 10.2.224.182.8700 > 10.2.20.246.33060: P 84426707:84426751(44) ack 44 win 33304 (DF) 11:34:54.462867 10.2.224.182.8700 > 10.2.20.246.33060: P 84426751:84426827(76) ack 44 win 33304 (DF) 11:34:54.463032 10.2.224.182.8700 > 10.2.20.246.33060: P 84426827:84426967(140) ack 44 win 33304 (DF) 11:34:54.463695 10.2.224.182.8700 > 10.2.20.246.33060: P 84426967:84427163(196) ack 44 win 33304 (DF) 11:34:54.466676 10.2.224.182.8700 > 10.2.20.246.33060: P 84427163:84427731(568) ack 44 win 33304 (DF) 11:34:54.467173 10.2.224.182.8700 > 10.2.20.246.33060: P 84427731:84427883(152) ack 44 win 33304 (DF) 11:34:54.467174 10.2.224.182.8700 > 10.2.20.246.33060: P 84427883:84427947(64) ack 44 win 33304 (DF) 11:34:54.467339 10.2.224.182.8700 > 10.2.20.246.33060: P 84427947:84427991(44) ack 44 win 33304 (DF) 11:34:54.468001 10.2.224.182.8700 > 10.2.20.246.33060: P 84427991:84428123(132) ack 44 win 33304 (DF) 11:34:54.468002 10.2.224.182.8700 > 10.2.20.246.33060: P 84428123:84428199(76) ack 44 win 33304 (DF) 11:34:54.468333 10.2.224.182.8700 > 10.2.20.246.33060: P 84428199:84428243(44) ack 44 win 33304 (DF) 11:34:54.468665 10.2.224.182.8700 > 10.2.20.246.33060: P 84428243:84428287(44) ack 44 win 33304 (DF) 11:34:54.468666 10.2.224.182.8700 > 10.2.20.246.33060: P 84428287:84428471(184) ack 44 win 33304 (DF) 11:34:54.468995 10.2.224.182.8700 > 10.2.20.246.33060: P 84428471:84428515(44) ack 44 win 33304 (DF) 11:34:54.469160 10.2.224.182.8700 > 10.2.20.246.33060: P 84428515:84428559(44) ack 44 win 33304 (DF) 11:34:54.469326 10.2.224.182.8700 > 10.2.20.246.33060: P 84428559:84428603(44) ack 44 win 33304 (DF) 11:34:54.469657 10.2.224.182.8700 > 10.2.20.246.33060: P 84428603:84428647(44) ack 44 win 33304 (DF) 11:34:54.469988 10.2.224.182.8700 > 10.2.20.246.33060: P 84428647:84428723(76) ack 44 win 33304 (DF) 11:34:54.469989 10.2.224.182.8700 > 10.2.20.246.33060: P 84428723:84428799(76) ack 44 win 33304 (DF) 11:34:54.470320 10.2.224.182.8700 > 10.2.20.246.33060: P 84428799:84428843(44) ack 44 win 33304 (DF) 11:34:54.474626 10.2.224.182.8700 > 10.2.20.246.33060: P 84428843:84429847(1004) ack 44 win 33304 (DF) 11:34:54.475123 10.2.224.182.8700 > 10.2.20.246.33060: P 84429847:84430031(184) ack 44 win 33304 (DF) 11:34:54.475124 10.2.224.182.8700 > 10.2.20.246.33060: P 84430031:84430163(132) ack 44 win 33304 (DF) 11:34:54.475951 10.2.224.182.8700 > 10.2.20.246.33060: P 84430163:84430359(196) ack 44 win 33304 (DF) 11:34:54.476448 10.2.224.182.8700 > 10.2.20.246.33060: P 84430359:84430499(140) ack 44 win 33304 (DF) 11:34:54.476449 10.2.224.182.8700 > 10.2.20.246.33060: P 84430499:84430543(44) ack 44 win 33304 (DF) 11:34:54.476614 10.2.224.182.8700 > 10.2.20.246.33060: P 84430543:84430575(32) ack 44 win 33304 (DF) 11:34:54.476945 10.2.224.182.8700 > 10.2.20.246.33060: P 84430575:84430619(44) ack 44 win 33304 (DF) 11:34:54.477111 10.2.224.182.8700 > 10.2.20.246.33060: P 84430619:84430695(76) ack 44 win 33304 (DF) 11:34:54.477277 10.2.224.182.8700 > 10.2.20.246.33060: P 84430695:84430727(32) ack 44 win 33304 (DF) 11:34:54.478601 10.2.224.182.8700 > 10.2.20.246.33060: P 84430727:84431119(392) ack 44 win 33304 (DF) 11:34:54.478601 10.2.224.182.8700 > 10.2.20.246.33060: P 84431119:84431151(32) ack 44 win 33304 (DF) 11:34:54.478767 10.2.224.182.8700 > 10.2.20.246.33060: P 84431151:84431183(32) ack 44 win 33304 (DF) 11:34:54.479099 10.2.224.182.8700 > 10.2.20.246.33060: P 84431183:84431227(44) ack 44 win 33304 (DF) 11:34:54.479099 10.2.224.182.8700 > 10.2.20.246.33060: P 84431227:84431303(76) ack 44 win 33304 (DF) 11:34:54.480092 10.2.224.182.8700 > 10.2.20.246.33060: P 84431303:84431587(284) ack 44 win 33304 (DF) 11:34:54.480755 10.2.224.182.8700 > 10.2.20.246.33060: P 84431587:84431739(152) ack 44 win 33304 (DF) 11:34:54.480756 10.2.224.182.8700 > 10.2.20.246.33060: P 84431739:84431815(76) ack 44 win 33304 (DF) 11:34:54.480921 10.2.224.182.8700 > 10.2.20.246.33060: P 84431815:84431859(44) ack 44 win 33304 (DF) 11:34:54.481251 10.2.224.182.8700 > 10.2.20.246.33060: P 84431859:84431891(32) ack 44 win 33304 (DF) 11:34:54.481417 10.2.224.182.8700 > 10.2.20.246.33060: P 84431891:84432163(272) ack 44 win 33304 (DF) 11:34:54.482576 10.2.224.182.8700 > 10.2.20.246.33060: P 84432163:84432531(368) ack 44 win 33304 (DF) 11:34:54.484398 10.2.224.182.8700 > 10.2.20.246.33060: P 84432531:84433183(652) ack 44 win 33304 (DF) 11:34:54.484564 10.2.224.182.8700 > 10.2.20.246.33060: P 84433183:84433271(88) ack 44 win 33304 (DF) 11:34:54.484564 10.2.224.182.8700 > 10.2.20.246.33060: P 84433271:84433303(32) ack 44 win 33304 (DF) 11:34:54.484895 10.2.224.182.8700 > 10.2.20.246.33060: P 84433303:84433335(32) ack 44 win 33304 (DF) 11:34:54.485061 10.2.224.182.8700 > 10.2.20.246.33060: P 84433335:84433739(404) ack 44 win 33304 (DF) 11:34:54.485392 10.2.224.182.8700 > 10.2.20.246.33060: P 84433739:84433815(76) ack 44 win 33304 (DF) 11:34:54.485723 10.2.224.182.8700 > 10.2.20.246.33060: P 84433815:84433859(44) ack 44 win 33304 (DF) 11:34:54.486718 10.2.224.182.8700 > 10.2.20.246.33060: P 84433859:84434695(836) ack 44 win 33304 (DF) 11:34:54.487214 10.2.224.182.8700 > 10.2.20.246.33060: P 84434695:84434899(204) ack 44 win 33304 (DF) 11:34:54.490198 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426555 win 9333 (DF) 11:34:54.490200 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426599 win 9322 (DF) 11:34:54.490202 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426707 win 9295 (DF) 11:34:54.490203 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426751 win 9284 (DF) 11:34:54.490362 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426751 win 9284 (DF) 11:34:54.490363 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426827 win 9265 (DF) 11:34:54.490365 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426967 win 9230 (DF) 11:34:54.490527 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84426967 win 9230 (DF) 11:34:54.490529 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84427163 win 9181 (DF) 11:34:54.490692 10.2.224.182.8700 > 10.2.20.246.33060: P 84434899:84435515(616) ack 44 win 33304 (DF) 11:34:54.490858 10.2.224.182.8700 > 10.2.20.246.33060: P 84435515:84435603(88) ack 44 win 33304 (DF) 11:34:54.491354 10.2.224.182.8700 > 10.2.20.246.33060: P 84435603:84435831(228) ack 44 win 33304 (DF) 11:34:54.491686 10.2.224.182.8700 > 10.2.20.246.33060: P 84435831:84435875(44) ack 44 win 33304 (DF) 11:34:54.491852 10.2.224.182.8700 > 10.2.20.246.33060: P 84435875:84436027(152) ack 44 win 33304 (DF) 11:34:54.493181 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84427731 win 9039 (DF) 11:34:54.494833 10.2.224.182.8700 > 10.2.20.246.33060: P 84436027:84436547(520) ack 44 win 33304 (DF) 11:34:54.494999 10.2.224.182.8700 > 10.2.20.246.33060: P 84436547:84436591(44) ack 44 win 33304 (DF) 11:34:54.495996 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84427947 win 8985 (DF) 11:34:54.496159 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84427947 win 8985 (DF) 11:34:54.496161 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84427991 win 8974 (DF) 11:34:54.496163 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428199 win 8922 (DF) 11:34:54.496325 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428199 win 8922 (DF) 11:34:54.496327 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428243 win 8911 (DF) 11:34:54.496329 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428471 win 8854 (DF) 11:34:54.496330 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428515 win 8843 (DF) 11:34:54.496332 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428559 win 8832 (DF) 11:34:54.496334 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428603 win 8821 (DF) 11:34:54.496490 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428603 win 8821 (DF) 11:34:54.497317 10.2.224.182.8700 > 10.2.20.246.33060: P 84436591:84437347(756) ack 44 win 33304 (DF) 11:34:54.498974 10.2.224.182.8700 > 10.2.20.246.33060: P 84437347:84437927(580) ack 44 win 33304 (DF) 11:34:54.499308 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428647 win 8810 (DF) 11:34:54.499310 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428799 win 8772 (DF) 11:34:54.499312 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84428843 win 8761 (DF) 11:34:54.500630 10.2.224.182.8700 > 10.2.20.246.33060: P 84437927:84438639(712) ack 44 win 33304 (DF) 11:34:54.500631 10.2.224.182.8700 > 10.2.20.246.33060: P 84438639:84438683(44) ack 44 win 33304 (DF) 11:34:54.500796 10.2.224.182.8700 > 10.2.20.246.33060: P 84438683:84438727(44) ack 44 win 33304 (DF) 11:34:54.501458 10.2.224.182.8700 > 10.2.20.246.33060: P 84438727:84438847(120) ack 44 win 33304 (DF) 11:34:54.501790 10.2.224.182.8700 > 10.2.20.246.33060: P 84438847:84438955(108) ack 44 win 33304 (DF) 11:34:54.501955 10.2.224.182.8700 > 10.2.20.246.33060: P 84438955:84439063(108) ack 44 win 33304 (DF) 11:34:54.502124 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84429847 win 8510 (DF) 11:34:54.502618 10.2.224.182.8700 > 10.2.20.246.33060: P 84439063:84439247(184) ack 44 win 33304 (DF) 11:34:54.502784 10.2.224.182.8700 > 10.2.20.246.33060: P 84439247:84439343(96) ack 44 win 33304 (DF) 11:34:54.502949 10.2.224.182.8700 > 10.2.20.246.33060: P 84439343:84439419(76) ack 44 win 33304 (DF) 11:34:54.503445 10.2.224.182.8700 > 10.2.20.246.33060: P 84439419:84439527(108) ack 44 win 33304 (DF) 11:34:54.503611 10.2.224.182.8700 > 10.2.20.246.33060: P 84439527:84439591(64) ack 44 win 33304 (DF) 11:34:54.504609 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84430163 win 8431 (DF) 11:34:54.504611 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84430359 win 8382 (DF) 11:34:54.504613 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84430543 win 8336 (DF) 11:34:54.504772 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84430543 win 8336 (DF) 11:34:54.504774 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84430575 win 8328 (DF) 11:34:54.504776 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84430619 win 8317 (DF) 11:34:54.504771 10.2.224.182.8700 > 10.2.20.246.33060: P 84439591:84439903(312) ack 44 win 33304 (DF) 11:34:54.504938 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84430619 win 8317 (DF) 11:34:54.504940 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84430695 win 8298 (DF) 11:34:54.504942 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84430727 win 8290 (DF) 11:34:54.506592 10.2.224.182.8700 > 10.2.20.246.33060: P 84439903:84440295(392) ack 44 win 33304 (DF) 11:34:54.506758 10.2.224.182.8700 > 10.2.20.246.33060: P 84440295:84440371(76) ack 44 win 33304 (DF) 11:34:54.506759 10.2.224.182.8700 > 10.2.20.246.33060: P 84440371:84440403(32) ack 44 win 33304 (DF) 11:34:54.507090 10.2.224.182.8700 > 10.2.20.246.33060: P 84440403:84440447(44) ack 44 win 33304 (DF) 11:34:54.507421 10.2.224.182.8700 > 10.2.20.246.33060: P 84440447:84440479(32) ack 44 win 33304 (DF) 11:34:54.507591 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431151 win 8184 (DF) 11:34:54.507594 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431183 win 8176 (DF) 11:34:54.507753 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431183 win 8176 (DF) 11:34:54.507754 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431303 win 8146 (DF) 11:34:54.507756 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431587 win 8075 (DF) 11:34:54.507921 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431587 win 8075 (DF) 11:34:54.507918 10.2.224.182.8700 > 10.2.20.246.33060: P 84440479:84440719(240) ack 44 win 33304 (DF) 11:34:54.508249 10.2.224.182.8700 > 10.2.20.246.33060: P 84440719:84440763(44) ack 44 win 33304 (DF) 11:34:54.508250 10.2.224.182.8700 > 10.2.20.246.33060: P 84440763:84440839(76) ack 44 win 33304 (DF) 11:34:54.508580 10.2.224.182.8700 > 10.2.20.246.33060: P 84440839:84440883(44) ack 44 win 33304 (DF) 11:34:54.509077 10.2.224.182.8700 > 10.2.20.246.33060: P 84440883:84440971(88) ack 44 win 33304 (DF) 11:34:54.509077 10.2.224.182.8700 > 10.2.20.246.33060: P 84440971:84441059(88) ack 44 win 33304 (DF) 11:34:54.509739 10.2.224.182.8700 > 10.2.20.246.33060: P 84441059:84441267(208) ack 44 win 33304 (DF) 11:34:54.510242 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431815 win 8018 (DF) 11:34:54.510237 10.2.224.182.8700 > 10.2.20.246.33060: P 84441267:84441387(120) ack 44 win 33304 (DF) 11:34:54.510404 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431815 win 8018 (DF) 11:34:54.510406 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431859 win 8007 (DF) 11:34:54.510408 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84431891 win 7999 (DF) 11:34:54.510409 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84432163 win 7931 (DF) 11:34:54.510411 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84432531 win 7839 (DF) 11:34:54.511230 10.2.224.182.8700 > 10.2.20.246.33060: P 84441387:84441615(228) ack 44 win 33304 (DF) 11:34:54.512389 10.2.224.182.8700 > 10.2.20.246.33060: P 84441615:84441659(44) ack 44 win 33304 (DF) 11:34:54.512886 10.2.224.182.8700 > 10.2.20.246.33060: P 84441659:84441791(132) ack 44 win 33304 (DF) 11:34:54.513059 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84433183 win 7676 (DF) 11:34:54.513218 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84433183 win 7676 (DF) 11:34:54.513220 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84433303 win 7646 (DF) 11:34:54.513222 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84433335 win 7638 (DF) 11:34:54.513224 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84433739 win 7537 (DF) 11:34:54.513385 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84433739 win 7537 (DF) 11:34:54.513387 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84433815 win 7518 (DF) 11:34:54.513388 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84433859 win 7507 (DF) 11:34:54.513551 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84433859 win 7507 (DF) 11:34:54.515205 10.2.224.182.8700 > 10.2.20.246.33060: P 84441791:84442039(248) ack 44 win 33304 (DF) 11:34:54.516039 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84434695 win 7298 (DF)11:34:54.516201 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84434695 win 7298 (DF) 11:34:54.516202 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84434899 win 7247 (DF) 11:34:54.517027 10.2.224.182.8700 > 10.2.20.246.33060: P 84442039:84442459(420) ack 44 win 33304 (DF) 11:34:54.517193 10.2.224.182.8700 > 10.2.20.246.33060: P 84442459:84442491(32) ack 44 win 33304 (DF) 11:34:54.517359 10.2.224.182.8700 > 10.2.20.246.33060: P 84442491:84442555(64) ack 44 win 33304 (DF) 11:34:54.517524 10.2.224.182.8700 > 10.2.20.246.33060: P 84442555:84442587(32) ack 44 win 33304 (DF) 11:34:54.517856 10.2.224.182.8700 > 10.2.20.246.33060: P 84442587:84442619(32) ack 44 win 33304 (DF) 11:34:54.518686 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84435515 win 7093 (DF) 11:34:54.518689 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84435603 win 7071 (DF) 11:34:54.518690 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84435831 win 7014 (DF) 11:34:54.518683 10.2.224.182.8700 > 10.2.20.246.33060: P 84442619:84442867(248) ack 44 win 33304 (DF) 11:34:54.521338 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84435875 win 7003 (DF) 11:34:54.521340 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84436027 win 6965 (DF) 11:34:54.521333 10.2.224.182.8700 > 10.2.20.246.33060: P 84442867:84443051(184) ack 44 win 33304 (DF) 11:34:54.521500 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84436027 win 6965 (DF) 11:34:54.523988 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84436547 win 6835 (DF) 11:34:54.523990 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84436591 win 6824 (DF) 11:34:54.526636 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84437347 win 6635 (DF) 11:34:54.526638 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84437927 win 6490 (DF) 11:34:54.526801 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84437927 win 6490 (DF) 11:34:54.527628 10.2.224.182.8700 > 10.2.20.246.33060: P 84443051:84444167(1116) ack 44 win 33304 (DF) 11:34:54.528952 10.2.224.182.8700 > 10.2.20.246.33060: P 84444167:84444655(488) ack 44 win 33304 (DF) 11:34:54.529286 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84438683 win 6301 (DF) 11:34:54.529288 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84438727 win 6290 (DF) 11:34:54.529450 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84438727 win 6290 (DF) 11:34:54.529452 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84438847 win 6260 (DF) 11:34:54.529454 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84438955 win 6233 (DF) 11:34:54.529616 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84438955 win 6233 (DF) 11:34:54.529618 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84439063 win 6206 (DF) 11:34:54.531934 10.2.224.182.8700 > 10.2.20.246.33060: P 84444655:84445703(1048) ack 44 win 33304 (DF) 11:34:54.532268 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84439247 win 6160 (DF) 11:34:54.532271 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84439343 win 6136 (DF) 11:34:54.532432 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84439343 win 6136 (DF) 11:34:54.532434 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84439419 win 6117 (DF) 11:34:54.532435 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84439527 win 6090 (DF) 11:34:54.532437 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84439591 win 6074 (DF) 11:34:54.532439 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84439903 win 5996 (DF) 11:34:54.535087 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84440295 win 5898 (DF) 11:34:54.535248 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84440295 win 5898 (DF) 11:34:54.535249 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84440403 win 5871 (DF) 11:34:54.535251 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84440447 win 5860 (DF) 11:34:54.535414 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84440447 win 5860 (DF) 11:34:54.535415 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84440479 win 5852 (DF) 11:34:54.535579 10.2.224.182.8700 > 10.2.20.246.33060: P 84445703:84446239(536) ack 44 win 33304 (DF) 11:34:54.537896 10.2.224.182.8700 > 10.2.20.246.33060: P 84446239:84447019(780) ack 44 win 33304 (DF) 11:34:54.537897 10.2.224.182.8700 > 10.2.20.246.33060: P 84447019:84447063(44) ack 44 win 33304 (DF) 11:34:54.538066 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84440719 win 5792 (DF) 11:34:54.538068 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84440839 win 5762 (DF) 11:34:54.538070 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84440883 win 5751 (DF) 11:34:54.538072 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84441059 win 5707 (DF) 11:34:54.538230 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84441059 win 5707 (DF) 11:34:54.538232 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84441267 win 5655 (DF) 11:34:54.538233 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84441387 win 5625 (DF) 11:34:54.538228 10.2.224.182.8700 > 10.2.20.246.33060: P 84447063:84447151(88) ack 44 win 33304 (DF) 11:34:54.538396 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84441387 win 5625 (DF) 11:34:54.538394 10.2.224.182.8700 > 10.2.20.246.33060: P 84447151:84447195(44) ack 44 win 33304 (DF) 11:34:54.538725 10.2.224.182.8700 > 10.2.20.246.33060: P 84447195:84447359(164) ack 44 win 33304 (DF) 11:34:54.541047 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84441615 win 5568 (DF) 11:34:54.541049 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84441659 win 5557 (DF) 11:34:54.541051 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84441791 win 5524 (DF) 11:34:54.543696 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84442039 win 5462 (DF) 11:34:54.543693 10.2.224.182.8700 > 10.2.20.246.33060: P 84447359:84447543(184) ack 44 win 33304 (DF) 11:34:54.544356 10.2.224.182.8700 > 10.2.20.246.33060: P 84447543:84447719(176) ack 44 win 33304 (DF) 11:34:54.546179 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84442459 win 5357 (DF) 11:34:54.546181 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84442491 win 5349 (DF) 11:34:54.546343 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84442491 win 5349 (DF) 11:34:54.546345 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84442555 win 5333 (DF) 11:34:54.546347 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84442587 win 5325 (DF) 11:34:54.546510 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84442587 win 5325 (DF) 11:34:54.546511 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84442619 win 5317 (DF) 11:34:54.546513 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84442867 win 5255 (DF) 11:34:54.548000 10.2.224.182.8700 > 10.2.20.246.33060: P 84447719:84448371(652) ack 44 win 33304 (DF) 11:34:54.548166 10.2.224.182.8700 > 10.2.20.246.33060: P 84448371:84448459(88) ack 44 win 33304 (DF) 11:34:54.548167 10.2.224.182.8700 > 10.2.20.246.33060: P 84448459:84448503(44) ack 44 win 33304 (DF) 11:34:54.548663 10.2.224.182.8700 > 10.2.20.246.33060: P 84448503:84448591(88) ack 44 win 33304 (DF) 11:34:54.548994 10.2.224.182.8700 > 10.2.20.246.33060: P 84448591:84448623(32) ack 44 win 33304 (DF) 11:34:54.549162 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84443051 win 5209 (DF) 11:34:54.549325 10.2.224.182.8700 > 10.2.20.246.33060: P 84448623:84448667(44) ack 44 win 33304 (DF) 11:34:54.549821 10.2.224.182.8700 > 10.2.20.246.33060: P 84448667:84448711(44) ack 44 win 33304 (DF) 11:34:54.549988 10.2.224.182.8700 > 10.2.20.246.33060: P 84448711:84448787(76) ack 44 win 33304 (DF) 11:34:54.550319 10.2.224.182.8700 > 10.2.20.246.33060: P 84448787:84448895(108) ack 44 win 33304 (DF) 11:34:54.553962 10.2.224.182.8700 > 10.2.20.246.33060: P 84448895:84449111(216) ack 44 win 33304 (DF) 11:34:54.554294 10.2.224.182.8700 > 10.2.20.246.33060: P 84449111:84449207(96) ack 44 win 33304 (DF) 11:34:54.554460 10.2.224.182.8700 > 10.2.20.246.33060: P 84449207:84449283(76) ack 44 win 33304 (DF) 11:34:54.554957 10.2.224.182.8700 > 10.2.20.246.33060: P 84449283:84449415(132) ack 44 win 33304 (DF) 11:34:54.556782 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84444655 win 4808 (DF) 11:34:54.557275 10.2.224.182.8700 > 10.2.20.246.33060: P 84449415:84449783(368) ack 44 win 33304 (DF) 11:34:54.557607 10.2.224.182.8700 > 10.2.20.246.33060: P 84449783:84449847(64) ack 44 win 33304 (DF) 11:34:54.557607 10.2.224.182.8700 > 10.2.20.246.33060: P 84449847:84449891(44) ack 44 win 33304 (DF) 11:34:54.557938 10.2.224.182.8700 > 10.2.20.246.33060: P 84449891:84449935(44) ack 44 win 33304 (DF) 11:34:54.558104 10.2.224.182.8700 > 10.2.20.246.33060: P 84449935:84449967(32) ack 44 win 33304 (DF) 11:34:54.558435 10.2.224.182.8700 > 10.2.20.246.33060: P 84449967:84450087(120) ack 44 win 33304 (DF) 11:34:54.558766 10.2.224.182.8700 > 10.2.20.246.33060: P 84450087:84450131(44) ack 44 win 33304 (DF) 11:34:54.558767 10.2.224.182.8700 > 10.2.20.246.33060: P 84450131:84450195(64) ack 44 win 33304 (DF) 11:34:54.558932 10.2.224.182.8700 > 10.2.20.246.33060: P 84450195:84450227(32) ack 44 win 33304 (DF) 11:34:54.559432 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84445703 win 4546 (DF) 11:34:54.560256 10.2.224.182.8700 > 10.2.20.246.33060: P 84450227:84450467(240) ack 44 win 33304 (DF) 11:34:54.560588 10.2.224.182.8700 > 10.2.20.246.33060: P 84450467:84450543(76) ack 44 win 33304 (DF) 11:34:54.564896 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84446239 win 4412 (DF) 11:34:54.564898 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84447063 win 4206 (DF) 11:34:54.565060 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84447063 win 4206 (DF) 11:34:54.565062 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84447151 win 4184 (DF) 11:34:54.567714 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84447195 win 4173 (DF) 11:34:54.567877 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84447195 win 4173 (DF) 11:34:54.567878 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84447359 win 4132 (DF) 11:34:54.568703 10.2.224.182.8700 > 10.2.20.246.33060: P 84450543:84451319(776) ack 44 win 33304 (DF) 11:34:54.570695 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84447543 win 4086 (DF) 11:34:54.570692 10.2.224.182.8700 > 10.2.20.246.33060: P 84451319:84451731(412) ack 44 win 33304 (DF) 11:34:54.573343 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84447719 win 4042 (DF) 11:34:54.576159 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448371 win 3879 (DF) 11:34:54.576161 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448503 win 3846 (DF) 11:34:54.576163 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448591 win 3824 (DF) 11:34:54.576165 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448623 win 3816 (DF) 11:34:54.576323 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448623 win 3816 (DF) 11:34:54.576325 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448667 win 3805 (DF) 11:34:54.576820 10.2.224.182.8700 > 10.2.20.246.33060: P 84451731:84452815(1084) ack 44 win 33304 (DF) 11:34:54.577150 10.2.224.182.8700 > 10.2.20.246.33060: P 84452815:84452991(176) ack 44 win 33304 (DF) 11:34:54.577978 10.2.224.182.8700 > 10.2.20.246.33060: P 84452991:84453383(392) ack 44 win 33304 (DF) 11:34:54.578975 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448711 win 3794 (DF) 11:34:54.578977 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448787 win 3775 (DF) 11:34:54.579306 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448787 win 3775 (DF) 11:34:54.579307 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84448895 win 3748 (DF) 11:34:54.581790 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84449111 win 3694 (DF) 11:34:54.581955 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84449111 win 3694 (DF) 11:34:54.581956 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84449207 win 3670 (DF) 11:34:54.581958 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84449283 win 3651 (DF) 11:34:54.581960 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84449415 win 3618 (DF) 11:34:54.584771 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84449783 win 3526 (DF) 11:34:54.584773 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84449891 win 3499 (DF) 11:34:54.584935 10.2.224.182.8700 > 10.2.20.246.33060: P 84453383:84454467(1084) ack 44 win 33304 (DF) 11:34:54.587587 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84449935 win 3488 (DF) 11:34:54.587590 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84449967 win 3480 (DF) 11:34:54.587591 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84450087 win 3450 (DF) 11:34:54.587593 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84450195 win 3423 (DF) 11:34:54.587753 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84450195 win 3423 (DF) 11:34:54.587755 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84450227 win 3415 (DF) 11:34:54.587757 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84450467 win 3355 (DF) 11:34:54.587751 10.2.224.182.8700 > 10.2.20.246.33060: P 84454467:84455575(1108) ack 44 win 33304 (DF) 11:34:54.587752 10.2.224.182.8700 > 10.2.20.246.33060: P 84455575:84455695(120) ack 44 win 33304 (DF) 11:34:54.590070 10.2.224.182.8700 > 10.2.20.246.33060: P 84455695:84456523(828) ack 44 win 33304 (DF) 11:34:54.590242 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84450543 win 3336 (DF) 11:34:54.590402 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84450543 win 3336 (DF) 11:34:54.590567 10.2.224.182.8700 > 10.2.20.246.33060: P 84456523:84456675(152) ack 44 win 33304 (DF) 11:34:54.590732 10.2.224.182.8700 > 10.2.20.246.33060: P 84456675:84457195(520) ack 44 win 33304 (DF) 11:34:54.593216 10.2.224.182.8700 > 10.2.20.246.33060: P 84457195:84458031(836) ack 44 win 33304 (DF) 11:34:54.593217 10.2.224.182.8700 > 10.2.20.246.33060: P 84458031:84458195(164) ack 44 win 33304 (DF) 11:34:54.595537 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84451319 win 3142 (DF) 11:34:54.598189 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84451731 win 3039 (DF) 11:34:54.598352 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84451731 win 3039 (DF) 11:34:54.601168 10.2.224.182.8700 > 10.2.20.246.33060: P 84458195:84458575(380) ack 44 win 33304 (DF) 11:34:54.601498 10.2.224.182.8700 > 10.2.20.246.33060: P 84458575:84458619(44) ack 44 win 33304 (DF) 11:34:54.603487 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84452815 win 2768 (DF) 11:34:54.606303 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84452991 win 2724 (DF) 11:34:54.606306 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84453383 win 2626 (DF) 11:34:54.609945 10.2.224.182.8700 > 10.2.20.246.33060: P 84458619:84458739(120) ack 44 win 33304 (DF) 11:34:54.611769 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84454467 win 2355 (DF) 11:34:54.614584 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84455695 win 2355 (DF) 11:34:54.617400 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84456523 win 2355 (DF) 11:34:54.617402 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84456675 win 2355 (DF) 11:34:54.617404 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84457195 win 2355 (DF) 11:34:54.620051 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84458195 win 2355 (DF) 11:34:54.620215 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84458195 win 2355 (DF) 11:34:54.624355 10.2.224.182.8700 > 10.2.20.246.33060: P 84458739:84459023(284) ack 44 win 33304 (DF) 11:34:54.628332 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84458575 win 2355 (DF) 11:34:54.628334 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84458619 win 2355 (DF) 11:34:54.628497 10.2.20.246.33060 > 10.2.224.182.8700: . ack 84458619 win 2355 (DF) This is where things start going bad. The window starts shrinking from 15340 all the way down to 2355 over the course of 0.3 seconds. Notice the many duplicate acks that serve no purpose (there are no lost packets and the tcpdump is taken on the receiver so there is no packets/acks crossed in flight). 11:40:08.256368 10.2.224.182.8700 > 10.2.20.246.33060: . 134964459:134965575(1116) ack 56 win 33304 (DF) 11:40:08.265606 10.2.224.182.8700 > 10.2.20.246.33060: . 134965575:134966691(1116) ack 56 win 33304 (DF) 11:40:08.265611 10.2.20.246.33060 > 10.2.224.182.8700: . ack 134966691 win 2355 (DF) 11:40:08.268555 10.2.224.182.8700 > 10.2.20.246.33060: . 134966691:134967795(1104) ack 56 win 33304 (DF) 11:40:08.268569 10.2.20.246.33060 > 10.2.224.182.8700: . ack 134967795 win 2355 (DF) 11:40:08.270158 10.2.224.182.8700 > 10.2.20.246.33060: . 134967795:134968911(1116) ack 56 win 33304 (DF) 11:40:08.273104 10.2.224.182.8700 > 10.2.20.246.33060: . 134968911:134970007(1096) ack 56 win 33304 (DF) 11:40:08.273109 10.2.20.246.33060 > 10.2.224.182.8700: . ack 134970007 win 2355 (DF) 11:40:08.275514 10.2.224.182.8700 > 10.2.20.246.33060: . 134970007:134971103(1096) ack 56 win 33304 (DF) 11:40:08.277522 10.2.224.182.8700 > 10.2.20.246.33060: . 134971103:134972187(1084) ack 56 win 33304 (DF) 11:40:08.277527 10.2.20.246.33060 > 10.2.224.182.8700: . ack 134972187 win 2355 (DF) 11:40:08.279664 10.2.224.182.8700 > 10.2.20.246.33060: . 134972187:134973263(1076) ack 56 win 33304 (DF) 11:40:08.279678 10.2.20.246.33060 > 10.2.224.182.8700: . ack 134973263 win 2355 (DF) Five minutes later the TCP window is still at 2355, having never recovered. The window is so small that the available bandwidth for this connection is too small to keep up with the real-time data so it is falling behind, hence large packets are again being used. The application processing the data (Java-based) is mostly idle at this point, and netstat shows its recv queue to be empty. There is no apparent reason why the kernel shouldn't enlarge the window. In fact, if I let it continue, it eventually shrinks the window even further (by 18:19:29, the time I'm writing this email, it's gone all the way down to 1373). As I mentioned earlier, I've seen it go as low as 181. We are kind of stumped at this point, and it's proving to be a show-stopping bug for our purposes, especially over WAN links that have higher latency (for obvious reasons). Any kind of assistance would be greatly appreciated. Thanks, -Ion - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/