Date: Thu, 27 Apr 2000 19:34:38 -0400 From: "Jerry Bell" <jerry@bellnetworks.net> To: "Wes Peters" <wes@softweyr.com>, "Ryan Thompson" <ryan@sasknow.com> Cc: <freebsd-net@FreeBSD.ORG> Subject: Re: Max T1. Throughput? Message-ID: <001f01bfb0a1$27690340$f7bbb1d0@netrex.com> References: <Pine.BSF.4.21.0004241805280.42785-100000@ren.sasknow.com> <3908C23B.177C942D@softweyr.com>
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Yikes, who is advertising like this? All of the providers in this area (Detroit) sell a 512k SDSL connection as 512k up and down (simutlaneously). Jerry ----- Original Message ----- From: Wes Peters <wes@softweyr.com> To: Ryan Thompson <ryan@sasknow.com> Cc: <freebsd-net@FreeBSD.ORG> Sent: Thursday, April 27, 2000 6:42 PM Subject: Re: Max T1. Throughput? > Ryan Thompson wrote: > > > > 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? > > SDSL is not "Synchronus", it is "Symmetrical", in other words you get > the same bandwidth in both directions, as opposed to Assymmetrical DSL > where (usually) the "download" bandwidth is greater than "upload." > > Most (all?) DSL providers quote the total throughput. If you buy 512K > SDSL, you get 256K up and down. 512K ADSL is usually 384K downstream > and 128K upstream. If you can get 768K bps down and 768K bps up > simultaneously, you're getting exactly what you paid for, even if it > is not what you wanted or expected. > > You should also note that DSL and T1 have nothing to do with each other. > > -- > "Where am I, and what am I doing in this handbasket?" > > Wes Peters Softweyr LLC > wes@softweyr.com http://softweyr.com/ > > > 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
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