From owner-freebsd-net@freebsd.org Tue Apr 5 10:38:35 2016 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 15AA0B01428 for ; Tue, 5 Apr 2016 10:38:35 +0000 (UTC) (envelope-from shahzaib.cb@gmail.com) Received: from mail-io0-x22b.google.com (mail-io0-x22b.google.com [IPv6:2607:f8b0:4001:c06::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id D7BB11507 for ; Tue, 5 Apr 2016 10:38:34 +0000 (UTC) (envelope-from shahzaib.cb@gmail.com) Received: by mail-io0-x22b.google.com with SMTP id 2so13719415ioy.1 for ; Tue, 05 Apr 2016 03:38:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to; bh=Pt2CkYz2Eok3pXBphU34MT9MNxRXOD5OEte8lC6mA2Y=; b=RNzUBfhsXZJEwNDmoPIuj9Y+HttQwWVnweWOsDJuVMrh/TVJwfYyEasiR1yWNWdXhl 3xxHrpF4dqt8HP7gH0lLK8weudPJjARmRj/i2oBKnASRRAKUQwKvcPe3IAr4XEG2iCpz Ub5Sc3AYDKNsNe8f6zScOslZz/y+ePWUT0OyZdEWH8E/sCmiUa8HTKI1LRfYFGDEbYTq yHjqXxbEwQGyAE+hjdpxITTOZETagJ2t/lC7A2ogasspR563cA6vXNdyl7wx6u+2prGJ HIN0VIsYFLYH9rAfIKlgEJWMCk7T2SVn9qsCIeiQ7rOoqlYuJJaibdM+UecCi63WsH/H aZQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=Pt2CkYz2Eok3pXBphU34MT9MNxRXOD5OEte8lC6mA2Y=; b=QQVnRr8LXcLHq13Ift7wMOtATkjEIgb2PX0CMTLpOcw61fwoyX1SAqW9DYZsI1uggU +n4u5R+0DBuEq2isrj1EMZQaaFcsx0SAMPSVM7+s6sWBaWRv6T6S923XgiwUwC0nSIvZ GCg5OsdjPWormNo0/CkKReHoDWpNiDVr9iYye9DgZBkj6V0ors+C5Bu46k5+Po+8GRYc WUPFGjfJMlyKYh/jd4AcOWfYPHe7DN3C3zXKkJaUBHZyyOOhnYpkmWBs600UDY96AEuN L6HjJzAiNtu3logRC0cBX3PsY90Jm2jXy1tdO9guYjfV4PFTJnRZjD7VDj4c5YA8X8p1 6q4A== X-Gm-Message-State: AD7BkJI8AMlszD4kY4E96JDsAoYS2/Cx561ABlDW2lICzEXCU9GB6QYkRTLWxyEGvooLbzPZn96rVZPPN8qcNw== MIME-Version: 1.0 X-Received: by 10.107.14.142 with SMTP id 136mr13623900ioo.94.1459852714182; Tue, 05 Apr 2016 03:38:34 -0700 (PDT) Received: by 10.79.117.89 with HTTP; Tue, 5 Apr 2016 03:38:34 -0700 (PDT) Date: Tue, 5 Apr 2016 15:38:34 +0500 Message-ID: Subject: TCP packets Drop !! From: shahzaib mushtaq To: freebsd-net@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.21 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Apr 2016 10:38:35 -0000 Hi Guys, Hopes i've landed on the correct forum for tcp network queries. We've seen tons of packets being dropped via command netstat -s in our production with FreeBSD-10.1. The one whose timeout value keeps on increasing is 'rexmit timeout' . Here is the list of timeout / dropped packets. http://prntscr.com/aod4f2 The server is on 4x1Gbps Lacp port . We've also tried disabling NICs feature TSO but in vain : http://prntscr.com/aod526 Please let me know if you need any further info to help resolving this issue ? Thanks in advance !! Regards. Shahzaib