Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 25 Apr 2000 01:01:30 -0400
From:      "Daniel J. Zaccariello" <marisombra@mindspring.com>
To:        "Jerry Bell" <jerry@bellnetworks.net>, "Ryan Thompson" <ryan@sasknow.com>, <freebsd-net@FreeBSD.ORG>
Subject:   Re: Max T1. Throughput?
Message-ID:  <4.3.2.20000425005848.045f38e0@pop.mindspring.com>
In-Reply-To: <001f01bfae56$9a79d780$f7bbb1d0@netrex.com>
References:  <Pine.BSF.4.21.0004241805280.42785-100000@ren.sasknow.com>

next in thread | previous in thread | raw e-mail | index | archive | help
Greets,

In SDSL, the synchronous doesn't mean full duplex.  You have a line speed 
of 1.5Mbps up and down, but not 1.5Mbps up and down at the same time.  For 
this you'd need something like HDSL (there may be another *dsl that can do 
this).

At 04/24/2000 09:35 PM Monday, Jerry Bell wrote:
>SDSL does mean that you should get the line speed (1.5Mbps in this case) in
>both directions.  Typically, there is a bit more protocol overhead with
>sdsl, since it is usually run via atm.

<snipped>

>Good luck,
>
>Jerry
>
>----- Original Message -----
>From: Ryan Thompson <ryan@sasknow.com>
>To: <freebsd-net@FreeBSD.ORG>
>Sent: Monday, April 24, 2000 8:06 PM
>Subject: Max T1. Throughput?
>
>
> > Sorry for the slightly off-topic post, here.  Couldn't think of a better
> > forum to inquire in, though.
> >
> > There seems to be some confusion around our region on what the maximum
> > throughput of a T1 is.  (Actually, we are on a 1.544Mbps leased SDSL line
> > from a local ISP.  The package was sold to us as a burstable T1).
> >
> > My preliminary tests seem to show a segregation between up and
> > down... Each maxing out at about 96KB/sec when the other is practically
> > idle.  Not the near-198KB/sec that I think I should be getting.
> >
> > Is SDSL the key, here?  Perhaps I took "Synchronous" in the wrong
> > way.  Does "Synchronous" imply UP = DOWN = 1.54Mbps / 2?
> >
> > Thanks,
> > - Ryan
> >
> >
> > --
> >   Ryan Thompson <ryan@sasknow.com>
> >   Systems Administrator, Accounts
> >   Phone: +1 (306) 664-1161
> >
> >   SaskNow Technologies     http://www.sasknow.com
> >   #106-380 3120 8th St E   Saskatoon, SK  S7H 0W2
> >
> >
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-net" in the body of the message
> >
>
>
>
>To Unsubscribe: send mail to majordomo@FreeBSD.org
>with "unsubscribe freebsd-net" in the body of the message



To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4.3.2.20000425005848.045f38e0>