From owner-freebsd-questions Thu Nov 25 14:31:16 1999 Delivered-To: freebsd-questions@freebsd.org Received: from mojave.sitaranetworks.com (mojave.sitaranetworks.com [199.103.141.157]) by hub.freebsd.org (Postfix) with ESMTP id 18F3E14F4E for ; Thu, 25 Nov 1999 14:31:08 -0800 (PST) (envelope-from grog@mojave.sitaranetworks.com) Message-ID: <19991125173107.16398@mojave.sitaranetworks.com> Date: Thu, 25 Nov 1999 17:31:07 -0500 From: Greg Lehey To: "Niels Chr. Bank-Pedersen" , freebsd-questions@FreeBSD.ORG Subject: Re: ping response times over ppp Reply-To: Greg Lehey References: <19991125230609.A23253@bank-pedersen.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <19991125230609.A23253@bank-pedersen.dk>; from Niels Chr. Bank-Pedersen on Thu, Nov 25, 1999 at 11:06:09PM +0100 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thursday, 25 November 1999 at 23:06:09 +0100, Niels Chr. Bank-Pedersen wrote: > Hi, > > We are doing some testing of some new network equipment, and I've > stumbled across the following: > > 64 bytes from 192.168.10.10: icmp_seq=22 ttl=253 time=210.361 ms > 64 bytes from 192.168.10.10: icmp_seq=23 ttl=253 time=210.392 ms > > All responsetimes equals n*10 + epsilon [ms]. I'm pretty sure we don't have > any queuing involved that could influence the results, so my question is > whether this is caused by timeresolution problems within either ping or > ppp; or I'm just plain lucky to hit n*10 every time? :) Sounds like it could be the other end. What's there? I seem to remember that System V STREAMS can sometimes do things like this. BTW, for normal ping packets and 33.6 or 56 kb/s, these are *very* slow times. Greg -- Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message