I am not a wireless network engineer by any stretch of the imagination. However, I do love analogies... and to me, taking up two lanes on an existing highway to let one lane of traffic drive faster does seem somewhat shortsighted.
My second point is related to Heath's excellent question: " >are these high speeds really necessary? " At least on my campus, the drive for wireless is to give users reliable access to the Internet. Since we will not have enough bandwidth in the foreseeable future to have 802.11n WiFi be the bottleneck, I am quietly wondering how necessary this kind of upgrade would be for us. Eric __________________________________________________________ Eric LaCroix, Director of Technology, New Hampton School 70 Main Street * New Hampton, NH 03256 603-677-3450 phone & fax The EDUCAUSE Wireless Issues Constituent Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> writes: >This is a multi-part message in MIME format. > >--Boundary_(ID_dKTAId9Hqbr2otAyVMLbKw) >Content-type: text/plain; charset=ISO-8859-1; format=flowed >Content-transfer-encoding: 7BIT > >I think the usage of wide channels requires a thoughtful look at the >needs of the users in the environment. If the users need the higher >bandwidth and/or you can space the channel coverage out so as to not >cause co-channel interference then their shouldn't be an issue. If >bandwidth isn't a concern and/or the environment has a lot of overlap >then wider channels may not be needed. I can't really comment on the DFS >as I'm not sure how 802.11n handles it. > >My question is, are these high speeds really necessary? I don't watch >very closely, but I've never seen a wired user consume a high percentage >bandwidth. I'm looking at pushing for some wireless upgrades in the >coming years, but I myself can't really see a good reason to wait for >the new HT technologies. > >-- >*Heath Barnhart, CCNA* >Network Administrator >Information Systems Services >Washburn University >Topeka, KS > >On 1/10/2012 9:53 AM, Kees Pronk wrote: >> Anyone would like to comment on the use of wide channels in 5Ghz, >especially with this (old but imho still useful info) in mind? See: >http://www.ti.com/lit/wp/sply003/sply003.pdf >> >> Also for environments having to deal with DFS i foresee >challenges......any comments? >> >> Thanks and have a great new wifi year! >> >> Kees Pronk >> >> >> >> >>>>> Hector J Rios<hr...@lsu.edu> 1/10/2012 3:36>>> >> For those of you following the development of gigabit Wi-Fi: >> >> >http://www.networkworld.com/news/2012/010912-ces-gigabit-wifi-254659.html?hpg1=bn >> >> Thanks, >> >> Hector Rios >> Louisiana State University >> >> ********** >> Participation and subscription information for this EDUCAUSE >Constituent Group discussion list can be found at >http://www.educause.edu/groups/. >> >> >> >--------------------------------------------------------------------------- >> Op deze e-mail zijn de volgende voorwaarden van toepassing: >> The following conditions apply to this e-mail: >> http://emaildisclaimer.avans.nl >> >--------------------------------------------------------------------------- >> >> ********** >> Participation and subscription information for this EDUCAUSE >Constituent Group discussion list can be found at >http://www.educause.edu/groups/. > > > > >********** >Participation and subscription information for this EDUCAUSE Constituent >Group discussion list can be found at http://www.educause.edu/groups/. > > >--Boundary_(ID_dKTAId9Hqbr2otAyVMLbKw) >Content-type: text/html; charset=ISO-8859-1 >Content-transfer-encoding: 7BIT > ><html> > <head> > <meta content="text/html; charset=ISO-8859-1" > http-equiv="Content-Type"> > </head> > <body bgcolor="#FFFFFF" text="#000000"> > I think the usage of wide channels requires a thoughtful look at the > needs of the users in the environment. If the users need the higher > bandwidth and/or you can space the channel coverage out so as to not > cause co-channel interference then their shouldn't be an issue. If > bandwidth isn't a concern and/or the environment has a lot of > overlap then wider channels may not be needed. I can't really > comment on the DFS as I'm not sure how 802.11n handles it.<br> > <br> > My question is, are these high speeds really necessary? I don't > watch very closely, but I've never seen a wired user consume a high > percentage bandwidth. I'm looking at pushing for some wireless > upgrades in the coming years, but I myself can't really see a good > reason to wait for the new HT technologies.<br> > <br> > -- <br> > <b>Heath Barnhart, CCNA</b><br> > Network Administrator<br> > Information Systems Services<br> > Washburn University<br> > Topeka, KS<br> > <br> > On 1/10/2012 9:53 AM, Kees Pronk wrote: > <blockquote cite="mid:4f0c6d16020000840001b...@gwiahsl1.avans.nl" > type="cite"> > <pre wrap="">Anyone would like to comment on the use of wide >channels in 5Ghz, especially with this (old but imho still useful info) >in mind? See: <a class="moz-txt-link-freetext" >href="http://www.ti.com/lit/wp/sply003/sply003.pdf";>http://www.ti.com/lit/wp/sply003/sply003.pdf</a> > >Also for environments having to deal with DFS i foresee >challenges......any comments? > >Thanks and have a great new wifi year! > >Kees Pronk > > > > ></pre> > <blockquote type="cite"> > <blockquote type="cite"> > <blockquote type="cite"> > <pre wrap="">Hector J Rios <a class="moz-txt-link-rfc2396E" >href="mailto:hr...@lsu.edu";><hr...@lsu.edu></a> 1/10/2012 3:36 >>>> ></pre> > </blockquote> > </blockquote> > </blockquote> > <pre wrap="">For those of you following the development of gigabit >Wi-Fi: > ><a class="moz-txt-link-freetext" >href="http://www.networkworld.com/news/2012/010912-ces-gigabit-wifi-254659.html?hpg1=bn";>http://www.networkworld.com/news/2012/010912-ces-gigabit-wifi-254659.html?hpg1=bn</a> > > >Thanks, > >Hector Rios >Louisiana State University > >********** >Participation and subscription information for this EDUCAUSE Constituent >Group discussion list can be found at <a class="moz-txt-link-freetext" >href="http://www.educause.edu/groups/";>http://www.educause.edu/groups/</a>. > > >--------------------------------------------------------------------------- > >Op deze e-mail zijn de volgende voorwaarden van toepassing: >The following conditions apply to this e-mail: ><a class="moz-txt-link-freetext" >href="http://emaildisclaimer.avans.nl";>http://emaildisclaimer.avans.nl</a> > >--------------------------------------------------------------------------- > > >********** >Participation and subscription information for this EDUCAUSE Constituent >Group discussion list can be found at <a class="moz-txt-link-freetext" >href="http://www.educause.edu/groups/";>http://www.educause.edu/groups/</a>. ></pre> > </blockquote> > <br> > <br> > <div class="moz-signature"><br> > </div> > </body> ></html> >********** >Participation and subscription information for this EDUCAUSE Constituent >Group discussion list can be found at http://www.educause.edu/groups/. ><p> > >--Boundary_(ID_dKTAId9Hqbr2otAyVMLbKw)-- ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
