Don't forget most of that client access wants to get off your network and to the internet via your WAN connection (bottleneck?)
On Sun, Feb 9, 2014 at 6:21 PM, Jason Cook <[email protected]>wrote: > Bandwidth wise the channel usage seems to say quite a bit, along with > what many have mentioned on whether or not the users within the designated > coverage area for an AP would necessarily use it. > > > > According to the Cisco whitepaper > > > http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps11983/white_paper_c11-713103.html > > > > There's only 1 80Mhz/Wave 1 configuration that would have more than 1Gb > of actual throughput (Table 2) > > > > There's 4 such configurations in 160Mhz/Wave 2, > > > > However point 2.3.6 states "We see that in the United States, there are > 20 to 25 20 MHz channels, 8 to 12 40 MHz channels, 4 to 6 80 MHz channels, > and 1 or 2 160 MHz channels. These numbers are ranges because of the > evolving regulatory issues surrounding the different spectrum noted in" > > > > So actually requiring more than 1Gbps uplinks seems like it would be a > rarity in our environments. I can 't see us ever using 160Mhz, except maybe > in a very small area with extreme requirements. But hopefully 802.11ad will > be out by then. > > > > -- > > Jason Cook > > The University of Adelaide, AUSTRALIA 5005 > > Ph : +61 8 8313 4800 > > e-mail: [email protected]<mailto:[email protected]> > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > [email protected]] *On Behalf Of *Ian McDonald > *Sent:* Monday, 10 February 2014 5:57 AM > *To:* [email protected] > *Subject:* Re: [WIRELESS-LAN] How many drops 802.11ac phase 2 > > > > Whether that 1G is divided between 10 or 50 devices, it's still a ton of > bandwidth. We appear to be having to increase density to compensate for low > client tx outputs, and poor antenna design. > > Thanks > > -- > ian > > Sent from my phone, please excuse brevity and misspelling. > ------------------------------ > > *From: *Julian Y Koh <[email protected]> > *Sent: *09/02/2014 16:56 > *To: *[email protected] > *Subject: *Re: [WIRELESS-LAN] How many drops 802.11ac phase 2 > > On Feb 9, 2014, at 02:29 , Ian McDonald <[email protected]> wrote: > > > > Design guides now are indicating an access point in every other room. > Where is all this bandwidth meant to go? > > Isn't this more being driven by supplying a reliable signal/coverage area > especially as client device density goes up and even more especially in > construction settings where propagation is challenging? > > > -- > Julian Y. Koh > Acting Associate Director, Telecommunications and Network Services > Northwestern University Information Technology (NUIT) > > 2001 Sheridan Road #G-166 > Evanston, IL 60208 > 847-467-5780 > NUIT Web Site: <http://www.it.northwestern.edu/> > PGP Public Key:<http://bt.ittns.northwestern.edu/julian/pgppubkey.html> > > ********** > 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/. > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron Walczak PMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"Resentment is like drinking poison and then hoping it will kill your enemies." - Nelson Mandela* *"You should not believe everything you read on the Internet" -Benjamin Franklin* *I asked God for all things, so I could enjoy life....* *God gave me life....... so that I could enjoy all things....* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer "The great aim of education is not knowledge but action." *- Herbert Spencer* ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
