Date: Tue, 13 May 2008 05:53:12 -0500 From: eculp <eculp@encontacto.net> To: Rainer Duffner <rainer@ultra-secure.de> Cc: freebsd-mobile <freebsd-mobile@freebsd.org> Subject: Re: I would appreciate an opinion from someone with internal network wireless voice and data experience Message-ID: <20080513055312.109759abuxovntc8@intranet.encontacto.net> In-Reply-To: <AC17C891-F61F-4D4B-B9AA-2E14D376D8DB@ultra-secure.de> References: <20080512103944.15946437959uuh8o@intranet.encontacto.net> <AC17C891-F61F-4D4B-B9AA-2E14D376D8DB@ultra-secure.de>
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Hi, Rainer. Quoting Rainer Duffner <rainer@ultra-secure.de>: > > Am 12.05.2008 um 17:39 schrieb eculp: > >> > > [...wireless office...] > >> >> I'm asking this because this is the first time I have seen anyone =20 >> trying to do a 100% wireless office and the idea is cool but only =20 >> if it works;) > > > Indeed. I'm no expert in wireless stuff either, but I know a couple =20 > of things for sure: > - it's a shared medium. Like original ethernet. So, bandwidth is =20 > limited, unlike in a switched ethernet, where it depends mostly on =20 > the backplane-bandwidth of the switch That is the base of the problem. > - whatever you do with your APs/Repeaters - they all share the same =20 > spectrum (shared medium, see above) > > Who sold them on this "wireless everything stuff"? > I hope it wasn't you ;-) No just the opposite, they asked my opinion because of the difficulty =20 and cost of wiring the antique building and I told them - NO - in no =20 uncertain terms. The contractor and his technical sub-contractor sold =20 them a dream. Dreams are soooo much easier to sell than reality;) =20 Plus I told them that if they did it to be sure that the contract =20 contain basically a satisfaction guaranteed or money back clause and =20 they were romanced out of that also. >> More general information: >> >> The individual workstations will be running freebsd or maybe one of =20 >> the pc versions. I haven't tried them. Initially there will be =20 >> about 25 of them so they could be used as repeaters, I guess. >> >> The reason for the type of construction and the disregard for FCC =20 >> on output is that I'm not in the US. >> >> The telephone equipment is linksys SPA941 that I don't find in =20 >> there page anymore. Maybe it was discontinued for technical =20 >> reasons. Haven't checked that yet. >> >> If this doesn't work the solution is to wire all that is not that =20 >> easy or inexpensive now the the remodeling is completed. > Indeed. > But wireless is not meant to shuffle around big amounts of data. At =20 > least, last time I looked. Maybe it has changed with Draft-N - but =20 > there are no drivers (yet) for Draft-N in FreeBSD anyway, and it's =20 > still a shared-medium. > Back when we had 10BaseT, files were also much smaller, nobody was =20 > sending around 20 MB PPT presentations and downloading a DVD ISO in =20 > 3 hours would have been an out-of-body experience. Rainer, thanks again for your common sense look at the problem. Since =20 I am basically forcing them to wire at probably double the original =20 cost, I, like your mentioning, "the last time I looked", want to be =20 sure that I'm not missing something that has changed. ed
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