New Zealand ADSL Mailing List


RE: Terrible international speeds

From: Craig Humphrey <Craig.Humphrey.Work_at_paradise.net.nz>
Date: Tue, 16 Aug 2005 09:26:38 +1200
Message-Id: <20050815212448.EALF1650.mta3-rme.xtra.co.nz@craigh>

Hi All,

All this really has very little to do with ADSL, since that's only the last
mile.

I just used BandwidthPlace from our corporate connection (100Mbit/s straight
to Global Gateway, aka NZ's International gateway), and got a score of
~600Kbit/s.

Then I stopped using our corporate proxy and got 1.1Mbit/s.

Then I switched from IE6 to Mozilla Firefox (1.0.4) and got 1.5Mbit/s, no
proxy.
Then Firefox with proxy got ~540Kbit/s.

All of which proves very little :)

I've been on the internet for quite some time and if there's one thing I've
learned, it's that as soon as traffic goes overseas (or over high latency
links), the bandwidth at your end means very little. Most protocols are
latency sensitive to some extent or another, HTTP usually does a pretty good
job and TCP is pretty smart at adjusting things, but the 100+ms latency
(round trip mind you) is enough to skew things a bit. FTP does a slightly
better job and no doubt some of the P2P protocols are further optimized to
handle varying latencies... (BTW anyone ever tried NetBIOS/SMB over a
lagged link, it's atrocious, because it was designed for LAN situations with
low latencies.)

OK that's just my 2c.

BTW over our 100Mbit/s link I've had up to about 8MByte/s (~80Mbit/s) to
some NZ locations [usually Microsoft/Akamai/JSGames class] and occasionally
I've managed to get 1MByte/s [~10Mbit/s) from overseas, but that's rare,
usually I'm happy if I get 200-300KByte/s from the States, Europe is worse
100-200KByte/s. Oh and uploading is generally much worse (no idea why).

Later'ish
Craig

> -----Original Message-----
> From: owner-adsl@unixathome.org
> [mailto:owner-adsl@unixathome.org] On Behalf Of racepics
> Sent: Monday, August 15, 2005 4:50 PM
> Cc: adsl@lists.unixathome.org
> Subject: Re: Terrible international speeds
>
> I have Telstraclear's version of JS+ ( I suspect it *IS*
> still JS+, just rebranded as Highspeed4 Flatout ) and the
> results are similar but not quite as bad as Nathan's.
> International ( tested at http://www.bandwidthplace.com/speedtest/ is
> 593.3 Kbits/s ( 74KBytes/s )
> National ( tested at http://www.jetstreamgames.co.nz/speed/
> is 1987.3Kbit/s (248KBytes/s ) So the problem is not just
> with ihug.........
>
> Chris.

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Received on Tue Aug 16 09:23:56 2005

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