From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-vc0-x236.google.com (mail-vc0-x236.google.com [IPv6:2607:f8b0:400c:c03::236]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 674DC21F2DF for ; Mon, 2 Mar 2015 10:22:09 -0800 (PST) Received: by mail-vc0-f182.google.com with SMTP id id10so11528947vcb.13 for ; Mon, 02 Mar 2015 10:22:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=R95xXpWEboAQbJrKrDogDOvaB2/SRxanUMSgWXyHNYg=; b=DZH20GqDFxKw8LirQ94Q9mXiqEyoonFCvNbASNfny4vCE+2JrOJJ3+Fb2FU3j/BWgS k5FRCscFa4Kfmdh6AUhbDE+aqCF0R0m3TS6v4a0QE+4DvIoYpthrMZNjAAWquCTzixHX lSXRCnrSY4zFglzDfLMlV4DjqnZd6YNKOycDREKeOFndqv9QNFme9was77BJri2HrWXh VVijUDyuCPmfFdkuMbBeoczk4LtRnQQNlDmMTrpYSpYE/eJZStXtWGpQ9yWWFd8xRRNj sPDz2SNb6Pptsv4hJHMh5a+rURbU5ppTtkhPnlclJtS7F5+06qhuibOvAkkk5lgoGhnS I9FQ== MIME-Version: 1.0 X-Received: by 10.52.103.10 with SMTP id fs10mr25752514vdb.58.1425320528927; Mon, 02 Mar 2015 10:22:08 -0800 (PST) Received: by 10.52.24.79 with HTTP; Mon, 2 Mar 2015 10:22:08 -0800 (PST) Received: by 10.52.24.79 with HTTP; Mon, 2 Mar 2015 10:22:08 -0800 (PST) In-Reply-To: References: <5EDCCC18D27F4F039FA971B3C834A466@srichardlxp2> <20150226151457.75fc898b@urahara> Date: Mon, 2 Mar 2015 20:22:08 +0200 Message-ID: From: Jonathan Morton To: divya singla Content-Type: multipart/alternative; boundary=047d7b8748d4d160470510524b6e Cc: codel@lists.bufferbloat.net Subject: Re: [Codel] About Packet Drop in Codel X-BeenThere: codel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: CoDel AQM discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Mar 2015 18:22:38 -0000 --047d7b8748d4d160470510524b6e Content-Type: text/plain; charset=UTF-8 The delay to that individual packet's data may be increased, but the queue length is reduced by triggering TCP's congestion control, reducing the delay to other packets by (in aggregate) a much larger amount. And with ECN marking, even the victim packet is not delayed extra. - Jonathan Morton --047d7b8748d4d160470510524b6e Content-Type: text/html; charset=UTF-8

The delay to that individual packet's data may be increased, but the queue length is reduced by triggering TCP's congestion control, reducing the delay to other packets by (in aggregate) a much larger amount.

And with ECN marking, even the victim packet is not delayed extra.

- Jonathan Morton

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