From owner-freebsd-questions@FreeBSD.ORG Mon Jun 21 12:28:21 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id ECBD816A4CE for ; Mon, 21 Jun 2004 12:28:21 +0000 (GMT) Received: from internet.potentialtech.com (h-66-167-251-6.phlapafg.covad.net [66.167.251.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id B89FF43D5A for ; Mon, 21 Jun 2004 12:28:21 +0000 (GMT) (envelope-from wmoran@potentialtech.com) Received: from working.potentialtech.com (pa-plum1c-102.pit.adelphia.net [24.53.179.102]) by internet.potentialtech.com (Postfix) with ESMTP id EF53F69A40; Mon, 21 Jun 2004 08:28:20 -0400 (EDT) Date: Mon, 21 Jun 2004 08:28:19 -0400 From: Bill Moran To: adrian kok Message-Id: <20040621082819.62923c72.wmoran@potentialtech.com> In-Reply-To: <20040621005632.5241.qmail@web21204.mail.yahoo.com> References: <20040621005632.5241.qmail@web21204.mail.yahoo.com> Organization: Potential Technologies X-Mailer: Sylpheed version 0.9.10 (GTK+ 1.2.10; i386-portbld-freebsd4.9) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit cc: questions@FreeBSD.org Subject: Re: ping command question X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Jun 2004 12:28:22 -0000 adrian kok wrote: > Hi all > > Do you know why the command "ping" in unix and window > is different? Yes. > I start from one ISP to ping other ISP > > 1/ If the following result from window, it is good or > not? > lost = 7 within 3 thousand packets No, that's not good. There's no reason to be losing any packets, unless there's a network problems. However, depending on who those two ISPs are and how far away from each other, that may be acceptable. > 2/ how do I kow the average ms is good or not? Is it fast enough? > 3/ Which one (unix or window) is best for testing? The Unix one. Last I checked, the windows one rounded off the RTTs, thus making it inaccurate for testing. > Thank you very much for your advice > > Reply from 66.49.4.148: bytes=32 time=99ms TTL=57 > Reply from 66.49.4.148: bytes=32 time=109ms TTL=57 > Reply from 66.49.4.148: bytes=32 time=100ms TTL=57 > Reply from 66.49.4.148: bytes=32 time=95ms TTL=57 > > Ping statistics for 66.49.4.148: > Packets: Sent = 3534, Received = 3527, Lost = 7 > (0% loss), > Approximate round trip times in milli-seconds: > Minimum = 89ms, Maximum = 640ms, Average = 102ms > Control-C It seems like you've got a LOT of variation. Either your sharing that net connection with a lot of other services, or you've got problems. -- Bill Moran Potential Technologies http://www.potentialtech.com