Date: Sat, 8 Sep 2007 21:47:44 +0100 From: RW <fbsd06@mlists.homeunix.com> To: freebsd-questions@freebsd.org Cc: tundra@tundraware.com Subject: Re: ADSL Bandwidth Monitoring Message-ID: <20070908214744.03710ef8@gumby.homeunix.com.> In-Reply-To: <46E305BA.3040604@tundraware.com> References: <46E2AEA8.4060403@adempiere.org> <70e8236f0709080735p1e60453cp435f58127c7a35fd@mail.gmail.com> <46E2BCB2.9010909@adempiere.org> <84b68b3d0709081225x4fb929fck38a3265846f7b8ba@mail.gmail.com> <46E305BA.3040604@tundraware.com>
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On Sat, 08 Sep 2007 15:27:38 -0500 Tim Daneliuk <tundra@tundraware.com> wrote: > Amitabh Kant wrote: > > On 9/8/07, Bahman M. <b.movaqar@adempiere.org> wrote: > >> I tested the connection by downloading 2~3 files simultaneously > >> and used 'bmon' as Mel suggested in another reply (thanks to > >> him). As I'd already guessed the RX don't get bigger than 30~40% > >> of the expected bandwidth. I performed the test with some other > >> files and there was no difference. > >> > >> Thanks, > >> > >> Bahman > > > > The bandwidth being advertised by your ISP would be the maximum > > thoughput allowed on your DSL lines with multiple DSL users sharing > > the same bandwidth, something that is generally known as contention > > ratio. > > > > See this link: > > http://en.wikipedia.org/wiki/Contention_ratio > > > > Amitabh > > But you should be able to hit the advertised bandwidth. To the best > of my knowledge, DSL itself is NOT a shared medium. It is a point-to- > point technology from your premise to the Central Office. The > bandwidth *behind* the CO may be shared, but should be so large > as to not be a bottleneck. It depends on your circumstances. Some people are constrained by contention ratio some aren't. Some ISPs offer a better ratio for a more expensive accounts.
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