New Zealand ADSL Mailing List


Re: Ping TImes

From: ChrissyR <ChrissyR_at_home.gen.nz>
Date: Mon, 24 Nov 2003 18:52:53 +1300
Message-ID: <002f01c3b24f$627214f0$8a3a59ca@desktop>

Thanks for that reply Steve.

I have posted more info now - including my IP. At least I thought I did but
do not see it on the list. I know what I did - I posted HTML so the data was
formatted in a way that was readable. Here it is again

Computing statistics for 100 seconds...
            Source to Here This Node/Link
Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address
  0 desktop [202.89.58.138]
                                0/ 100 = 0% |
  1 352ms 0/ 100 = 0% 0/ 100 = 0% 202.89.58.128
                                0/ 100 = 0% |
  2 38ms 0/ 100 = 0% 0/ 100 = 0% atm5-0-0-2.IPA1-R45-5.ipnet.telecom.co.nz [192.168.253.1]
                                0/ 100 = 0% |
  3 48ms 0/ 100 = 0% 0/ 100 = 0% atm4-0-0-32.br01.akl1.maxnet.net.nz [210.55.230.218]
                                0/ 100 = 0% |
  4 40ms 0/ 100 = 0% 0/ 100 = 0% fa0.cr01.akl1.maxnet.net.nz [210.55.230.253]

Trace complete.

The reason that I am asking is that I have an almost totally new system and
it was at about that time that things changed so it is a little difficult to work
out what caused it.

What alerted me to a problem was when playing cards online. I used to be
able to play a hand of Euchre in under 20 seconds if all players were good
players and had problem free connections. Even on dial up three years ago
I had better response times. It can take up to three mins for me to play one
hand now.

The games run as a Java applet. www.games.yahoo.com Right now it is
unplayable.

The changes to my system are
new CPU - faster
new memory - faster
new HDD - faster
new screen/keyboard/mouse (with new drivers) - all way way better
new OS - XP Pro
new ISP

same phone lines
same ADSL card and drivers (old ones were for NZ for Win2k)

Chrissy.

----- Original Message -----
From: "Steve Phillips" <steve@focb.co.nz>
To: "ADSL List User'" <adsl@lists.unixathome.org>
Sent: Monday, November 24, 2003 1:38 PM
Subject: Re: Ping TImes

> > If I ping the first hop from a Trace Route (the server IP from the PPP
> > properties)
> > with continuous pings I get times of 27ms to 35ms averaging about 32ms
> > most
> > of the time. Sometimes (about every 50 to 100 pings if pinging is
> > continuous)
> > I get a bunch of pings which range from 200ms to 2,000ms. This happens no
> > matter what time of the day or night I try it.
> >
> > I have an internal ADSL card and I am nothing else is running at the times
> > I am
> > doing the pings.
> >
> > Telecom said my line tests ok - perfect was the word they used.
> >
> > What can I do to improve this? Is this an ISP issue or an issue with my
> > line or
> > my computer?
>
> Kin of hard to ascertain with the information you have supplied, but one
> possible cause my be the fact that ICMP could have been given a lower
> priority than other traffic on the device you connect to and as other
> traffic comes in/out of the device (not necessarily to your port) the icmp
> traffic takes a backseat.
>
> Some people actually do this in the reverse to give the impression of no
> network problems on an overly congested network.
>
> Have you tried doign something similar with TCP/UP testing tools ? (iperf
> may be able to be used to test your throughput - check with your isp and
> they may be able to put up a server for you to test againt)
>
> > If I do the same and ping the third hop - My ISP - then I get this same
> > inconsistent
> > pattern but it happens every 50 odd pings and goes for about 10 pings.
> > My ISP
> > said it is just the way things are but I am wondering if it is the way
> > things should be.
>
> There are far too many variables here - especially seeing as DSL has no
> surrounding service level agreements, as a best effort service you will
> find that at times you get just that, and there will be hiccups and
> slowdowns and the like but usually it will work ok.
>
>
> > I have pasted the pings to my ISP which I got about 5 mins ago.
>
> You may find it helpful to paste the IP you are testing to as well if it
> is a public address as that way others can test to the same IP and paste
> their results back which will give you an overview across a wider cross
> section of users and may help eliminate the "is it my PC or the ISP or the
> line ?" type issues.
>
> --
> Steve.
> --
> This message is part of the NZ ADSL mailing list.
> see http://unixathome.org/adsl/ for archives, FAQ,
> and various documents.
> To unsubscribe: send mail to majordomo@lists.unixathome.org
> with "unsubscribe adsl" in the body of the message
>
>

-- 
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Received on Mon Nov 24 18:54:42 2003

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