"It seems that the ADSL modem/exchange can be somewhat optimistic about what
speed they negotiate for a given line quality and end up trying to go too
fast for the conditions"

That would certainly figure, and could explain why people aren't reporting
the micro-outages so much on the M1122. I was getting micro-outages several
times a day on an M11, which had a max downstream of >8000kbit/s. With the
M1122, I can't remember the last time I had an outage, but my max reported
downstream is 7616 kbit/s. I suspect this is a reflection of the different
modems negotiating different max speeds. Anyone else get lower max on the
M1122 than the M11 and no outages?

-----Original Message-----
From: owner-adsl@unixathome.org [mailto:owner-adsl@unixathome.org]On
Behalf Of ComputerNorth
Sent: Tuesday, 6 March 2001 9:40 a.m.
To: Wayne Kampjes
Subject: Re: Micro Outages - a Telecom offer

At 09:10 2/03/2001 +1300, Wayne Kampjes wrote:

>I have been watching the discussion for a while now and have the
>following offer
>
>- I would like to work with people who are having problems. In the 1st
>
>[.........snip..........]

I'd like to suggest that anyone experiencing micro-outages contact Wayne
with the details, as he has offered in this message.

Our connection has gone from about 5 micro-outages a day to none whatsoever
in 4 days after an adjustment of "noise margin" made by Wayne :-)

The reported maximum line speed is considerably slower, but I can still get
about 375KB/s max from NZ sites, so I'm not complaining :) It seems that
the ADSL modem/exchange can be somewhat optimistic about what speed they
negotiate for a given line quality and end up trying to go too fast for the
conditions, particularly if the line quality varies with time, as I suspect
ours might. (Perhaps a sign of this is that after each micro-outage, the
reported line rate was wildly different, varying from 5000-6200)

Regards,
Simon

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@unixathome.org
with "unsubscribe adsl" in the body of the message
Received on Wed Mar 7 17:45:17 2001