From: Baldwin_James at domain emc.com
Date: Tue 05 Jun 2001 - 09:34:16 IST
Hi Kevin...
If you are gonna run a presentation to show-off aDSL, remember the 'a' for
Asymmetric in DSL...
ADSL is tuned towards downloading rather than uploading...it was originally
intended as a media-streaming solution...
The upstream is typically 1/8 of the downstream, so bidirectional
Video-conferencing can actually be very choppy(queue horrified faces on
Telco bigwigs around bigscreen), so you may try setting audio quality on the
video software to mono/8khz to squeeze more bandwidth for video on the
upload...
Why not download RH7.1 ISO a couple of times to impress and then tell 'em to
go home and try it on an Esat No Limits analog dial-up (;P -> Esat)....I am
sure you'll have believers...
James.
-----Original Message-----
From: Petra [mailto:uno at domain eircom.net]
Sent: Saturday, June 02, 2001 1:26 AM
To: kevin lyda
Cc: ilug at domain linux.ie
Subject: Re: [ILUG] Re: ADSL Connection bandwidth Tests
Greetings all,
Sorry for the slow reply to you Kevin, and the group.
I've been away for most of last week.
kevin lyda wrote:
>
> On Sun, May 27, 2001 at 08:43:13PM +0000, Petra wrote:
> > We have a ADSL test setup in one of our labs and I'd really like to run
> > some
>
> i think i have a question that many ilug members might have, namely
> what are you testing adsl for?
Well I work for a Telecoms training centre. We have just installed a
number of ADSL access nodes for training purposes which are accessing a
Linux web server through an ATM switch and an IP router. I have been
involved in the installation of the system and I want to demonstrate the
speed and reliability of ADSL during the training courses.
I guess that video streaming and videophone stuff would be really good
demonstrations, but I also want to show a measurement of the available
bandwidth.
So what is the best way to measure the available bandwidth + latency?
Are there any good applications out there for this?
>
> i'm mainly curious because if you're doing it for eircom (or any other
> phone company) i'd hope that:
>
> a) we get some credit for the help. this isn't that important,
> but it would be nice. more important is...
I don't work for Eircom...!
> b) my experience with broadband in the states is that broadband
> providers are very, very, very linux, *bsd and unix unfriendly.
> my main objection to this can best be described is that it's just
> plain rude. unix and *bsd systems were used to design and build
> the net and linux and *bsd systems were used in a huge number
> of isp's. i don't expect support, but i do find the outright
> hostility that many adsl and cable companies exhibit unwarrented.
>
The ADSL "modems" we are using will work with Linux, or any other
operating
system that can drive an Ethernet card. It's configured via a web
browser and
has the ability to do NAT (when in routing mode)
I guess that I could organise some demos to ILUG members if there is
interest.
Pete.
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