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 A07F021F346 for ; Sat, 14 Mar 2015 07:57:08 -0700 (PDT) Received: by mail-vc0-f182.google.com with SMTP id hy4so9502076vcb.13 for ; Sat, 14 Mar 2015 07:57:06 -0700 (PDT) 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=1+9UlXxV+Mc0CpA/LhiYqpy6l6kpjo/9l7Yztvy6lS4=; b=0skqaox7e9nZaOL9nfjFMgrfBxiIgQ3AlzLs63sTFk1OWfv1rF9LQ7+3QeFyLygOCH arV63hI8LLxd66nK5kVCG0Q7gOZQyv8yz+7h6NRig0eNdmh16lfUKlAK1yrz/m2MkoSW pAspuK0vk7hARMHD61RwNmVHdla6EaZpO/CxFkgNdzWjtoQadMCgHrZ5SA7T7Bdq7ikN kwl0gLgESH4NpBizchqVO/bVphvu5MQUmlkmD2+/9mwpKSgy/vOYf18XdQ7UIixaDIpg XSE7i89MUUqdN3Q+mxyXvT9Xl4IeozuUHrWgonpO9TQ7Ne4YSTs4IWKzRSsTEt8yQfvs 6jUg== MIME-Version: 1.0 X-Received: by 10.52.243.41 with SMTP id wv9mr56463429vdc.20.1426345026211; Sat, 14 Mar 2015 07:57:06 -0700 (PDT) Received: by 10.52.240.145 with HTTP; Sat, 14 Mar 2015 07:57:06 -0700 (PDT) Received: by 10.52.240.145 with HTTP; Sat, 14 Mar 2015 07:57:06 -0700 (PDT) In-Reply-To: References: Date: Sat, 14 Mar 2015 16:57:06 +0200 Message-ID: From: Jonathan Morton To: divya singla Content-Type: multipart/alternative; boundary=001a113401389d53e9051140d47c Cc: codel@lists.bufferbloat.net Subject: Re: [Codel] Latency vs Delay 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: Sat, 14 Mar 2015 14:57:37 -0000 --001a113401389d53e9051140d47c Content-Type: text/plain; charset=UTF-8 They mean the same thing, for most practical purposes. However, you could (when writing your own papers) usefully define latency as the total RTT, and delay as only the avoidable components of that. The speed of light, etc, mean that some latency is unavoidable in any communication. - Jonathan Morton --001a113401389d53e9051140d47c Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

They mean the same thing, for most practical purposes. Howev= er, you could (when writing your own papers) usefully define latency as the= total RTT, and delay as only the avoidable components of that. The speed o= f light, etc, mean that some latency is unavoidable in any communication.

- Jonathan Morton

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