Date: Tue, 25 Apr 2000 02:56:19 -0500 From: HyunSeog Ryu <r.hyunseog@ieee.org> To: "Daniel J. Zaccariello" <marisombra@mindspring.com> Cc: Jerry Bell <jerry@bellnetworks.net>, Ryan Thompson <ryan@sasknow.com>, freebsd-net@FreeBSD.ORG Subject: Re: Max T1. Throughput? Message-ID: <39054FA3.B947CBD6@ieee.org> References: <Pine.BSF.4.21.0004241805280.42785-100000@ren.sasknow.com> <4.3.2.20000425005848.045f38e0@pop.mindspring.com>
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This is a multi-part message in MIME format. --------------0D8085963DA78D092440A3DA Content-Type: text/plain; charset=EUC-KR Content-Transfer-Encoding: 7bit Hmmm.... Isn't it that SDSL is one pair version of HDSL? ;> HDSL use two pairs for transmission. Am I wrong? ;> Hyun "Daniel J. Zaccariello" wrote: > > 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 --------------0D8085963DA78D092440A3DA Content-Type: text/x-vcard; charset=EUC-KR; name="r.hyunseog.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for HyunSeog Ryu Content-Disposition: attachment; filename="r.hyunseog.vcf" begin:vcard n:Ryu;HyunSeog x-mozilla-html:FALSE url:http://home.earthlink.net/~moonhunt adr:;;;;;; version:2.1 email;internet:r.hyunseog@ieee.org note;quoted-printable:HR201-ARIN=0D=0AHR1-APNIC=0D=0AHR201=0D=0A x-mozilla-cpt:;13376 fn:HyunSeog Ryu end:vcard --------------0D8085963DA78D092440A3DA-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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