Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

2012-01-10 Thread Heath Barnhart
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  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

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Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

2012-01-10 Thread Rick Brown
While the high speeds may not be necessary, "perception is reality." They will 
be demanded because the capability is there!  IMHO in the 5GHz world there are 
enough channels to handle bonding them!  And...if you make the bandwidth 
available somebody will use it!

Sent from my iPhone

On Jan 10, 2012, at 2:42 PM, "Eric W. LaCroix"  wrote:

> 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  
>  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  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
> 
> 
>  
>  http-equiv="Content-Type">
>  
>  
>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

RE: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

2012-01-11 Thread Hector J Rios
You got it right Lee. The higher speeds will not necessarily be of use for us 
in the higher ed sector (yet... you never know), although it will be nice to 
simply have the capability in those special cases where they could be used. For 
now the one advantage that Gigabit Wi-Fi will provide will be improved HD video 
streaming. Again, you could see this mainly as a consumer-oriented advantage 
rather than an enterprise. But we are seeing more and more devices with 
wireless network capabilities these days. I think these new standards will be 
the answer to the growth of all these upcoming WiFi-enabled devices.

Hector Rios
Louisiana State University


Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

2012-01-11 Thread Mike King
I can't find the direct quote.  I can find the mission statement that is
directly related to it:
http://www.google.com/fiber/kansascity/about.html

But a project manager invovled with the Google Fiber Project (Gigabit
access to the home in Kansas City) had a quote along the lines of:

When everyone had a modem, and only accessed email and basic webpages,
nobody could imagine downloading a movie, and video conferencing (Skyping).
 Now this is commonplace.  We don't know what people will do with larger
bandwidth, because it's never been available.

I think of this quote every time someone start talking about connection
speeds (Be it Wireless, Wired, and Consumer Connections)

Mike

On Wed, Jan 11, 2012 at 9:44 AM, Hector J Rios  wrote:

>  You got it right Lee. The higher speeds will not necessarily be of use
> for us in the higher ed sector (yet... you never know), although it will be
> nice to simply have the capability in those special cases where they could
> be used. For now the one advantage that Gigabit Wi-Fi will provide will be
> improved HD video streaming. Again, you could see this mainly as a
> consumer-oriented advantage rather than an enterprise. But we are seeing
> more and more devices with wireless network capabilities these days. I
> think these new standards will be the answer to the growth of all these
> upcoming WiFi-enabled devices.
>
> ** **
>
> 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/.



RE: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

2012-01-11 Thread Jennings, Zachariah E.
With the amount of glasses free HD 3D screens being shown at CES this week, I 
would imagine something along the lines of Skype in HD 3D. Also, the next HD 
standard will be 4k HD. That will exceed the limits of current 802.11n. Think 
of it this way, HDMI version 1.4 cables are capable of 10Gbps. People are going 
to want that without the wires (eventually). Can you imagine the day when all 
you have to do is hang that new TV on your wall and plug in the power? I can. 
And it will be amazing. Of course then there's wireless power. So maybe not 
even a power cable. :)

Zach Jennings
Senior Network Server Manager
Aruba Certified Mobility Professional, Airheads MVP
West Chester University of PA
610-436-1069

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Mike King
Sent: Wednesday, January 11, 2012 10:37 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

I can't find the direct quote.  I can find the mission statement that is 
directly related to it:
http://www.google.com/fiber/kansascity/about.html

But a project manager invovled with the Google Fiber Project (Gigabit access to 
the home in Kansas City) had a quote along the lines of:

When everyone had a modem, and only accessed email and basic webpages, nobody 
could imagine downloading a movie, and video conferencing (Skyping).  Now this 
is commonplace.  We don't know what people will do with larger bandwidth, 
because it's never been available.

I think of this quote every time someone start talking about connection speeds 
(Be it Wireless, Wired, and Consumer Connections)

Mike

On Wed, Jan 11, 2012 at 9:44 AM, Hector J Rios 
mailto:hr...@lsu.edu>> wrote:
You got it right Lee. The higher speeds will not necessarily be of use for us 
in the higher ed sector (yet... you never know), although it will be nice to 
simply have the capability in those special cases where they could be used. For 
now the one advantage that Gigabit Wi-Fi will provide will be improved HD video 
streaming. Again, you could see this mainly as a consumer-oriented advantage 
rather than an enterprise. But we are seeing more and more devices with 
wireless network capabilities these days. I think these new standards will be 
the answer to the growth of all these upcoming WiFi-enabled devices.

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/.

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.



Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

2012-01-11 Thread Jesse Safran
To add to Zach's point about not plugging in, the one thing no one is
mentioning is the ability to do backhaul over the air.  Yes, running a wire
is always ideal, but imagine being able to roll out a full wireless
deployment without pulling wires for network traffic.  Yes, you can do that
now, but not at speeds that are close to wire speeds.  Of course, you will
still need power... but you have to start somewhere.

-Jesse

On Wed, Jan 11, 2012 at 10:58 AM, Jennings, Zachariah E. <
zjenni...@wcupa.edu> wrote:

> With the amount of glasses free HD 3D screens being shown at CES this
> week, I would imagine something along the lines of Skype in HD 3D. Also,
> the next HD standard will be 4k HD. That will exceed the limits of current
> 802.11n. Think of it this way, HDMI version 1.4 cables are capable of
> 10Gbps. People are going to want that without the wires (eventually). Can
> you imagine the day when all you have to do is hang that new TV on your
> wall and plug in the power? I can. And it will be amazing. Of course then
> there’s wireless power. So maybe not even a power cable. ☺
>
> Zach Jennings
> Senior Network Server Manager
> Aruba Certified Mobility Professional, Airheads MVP
> West Chester University of PA
> 610-436-1069
>
> From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:
> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Mike King
> Sent: Wednesday, January 11, 2012 10:37 AM
> To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
> Subject: Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi
>
> I can't find the direct quote.  I can find the mission statement that is
> directly related to it:
> http://www.google.com/fiber/kansascity/about.html
>
> But a project manager invovled with the Google Fiber Project (Gigabit
> access to the home in Kansas City) had a quote along the lines of:
>
> When everyone had a modem, and only accessed email and basic webpages,
> nobody could imagine downloading a movie, and video conferencing (Skyping).
>  Now this is commonplace.  We don't know what people will do with larger
> bandwidth, because it's never been available.
>
> I think of this quote every time someone start talking about connection
> speeds (Be it Wireless, Wired, and Consumer Connections)
>
> Mike
>
> On Wed, Jan 11, 2012 at 9:44 AM, Hector J Rios  hr...@lsu.edu>> wrote:
> You got it right Lee. The higher speeds will not necessarily be of use for
> us in the higher ed sector (yet... you never know), although it will be
> nice to simply have the capability in those special cases where they could
> be used. For now the one advantage that Gigabit Wi-Fi will provide will be
> improved HD video streaming. Again, you could see this mainly as a
> consumer-oriented advantage rather than an enterprise. But we are seeing
> more and more devices with wireless network capabilities these days. I
> think these new standards will be the answer to the growth of all these
> upcoming WiFi-enabled devices.
>
> 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/.
> ** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/groups/.
>



-- 
Jesse Safran
Sr. Desktop Supervisor/Assist. Network Admin
Green Mountain College
1 Brennan Circle
Poultney, VT 05764
802-287-0105 (Cell)
802-287-8264 (IT Computer Support Line)
safr...@greenmtn.edu 

**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/groups/.



RE: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

2012-01-11 Thread Jennings, Zachariah E.
Good call Jesse! It would also create a viable alternative to running fiber 
between buildings on campus, or provide a high-speed backup in case fiber goes 
down.

Zach Jennings
Senior Network Server Manager
Aruba Certified Mobility Professional, Airheads MVP
West Chester University of PA
610-436-1069

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jesse Safran
Sent: Wednesday, January 11, 2012 1:40 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

To add to Zach's point about not plugging in, the one thing no one is 
mentioning is the ability to do backhaul over the air.  Yes, running a wire is 
always ideal, but imagine being able to roll out a full wireless deployment 
without pulling wires for network traffic.  Yes, you can do that now, but not 
at speeds that are close to wire speeds.  Of course, you will still need 
power... but you have to start somewhere.

-Jesse
On Wed, Jan 11, 2012 at 10:58 AM, Jennings, Zachariah E. 
mailto:zjenni...@wcupa.edu>> wrote:
With the amount of glasses free HD 3D screens being shown at CES this week, I 
would imagine something along the lines of Skype in HD 3D. Also, the next HD 
standard will be 4k HD. That will exceed the limits of current 802.11n. Think 
of it this way, HDMI version 1.4 cables are capable of 10Gbps. People are going 
to want that without the wires (eventually). Can you imagine the day when all 
you have to do is hang that new TV on your wall and plug in the power? I can. 
And it will be amazing. Of course then there’s wireless power. So maybe not 
even a power cable. ☺

Zach Jennings
Senior Network Server Manager
Aruba Certified Mobility Professional, Airheads MVP
West Chester University of PA
610-436-1069

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>]
 On Behalf Of Mike King
Sent: Wednesday, January 11, 2012 10:37 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi
I can't find the direct quote.  I can find the mission statement that is 
directly related to it:
http://www.google.com/fiber/kansascity/about.html

But a project manager invovled with the Google Fiber Project (Gigabit access to 
the home in Kansas City) had a quote along the lines of:

When everyone had a modem, and only accessed email and basic webpages, nobody 
could imagine downloading a movie, and video conferencing (Skyping).  Now this 
is commonplace.  We don't know what people will do with larger bandwidth, 
because it's never been available.

I think of this quote every time someone start talking about connection speeds 
(Be it Wireless, Wired, and Consumer Connections)

Mike

On Wed, Jan 11, 2012 at 9:44 AM, Hector J Rios 
mailto:hr...@lsu.edu><mailto:hr...@lsu.edu<mailto:hr...@lsu.edu>>>
 wrote:
You got it right Lee. The higher speeds will not necessarily be of use for us 
in the higher ed sector (yet... you never know), although it will be nice to 
simply have the capability in those special cases where they could be used. For 
now the one advantage that Gigabit Wi-Fi will provide will be improved HD video 
streaming. Again, you could see this mainly as a consumer-oriented advantage 
rather than an enterprise. But we are seeing more and more devices with 
wireless network capabilities these days. I think these new standards will be 
the answer to the growth of all these upcoming WiFi-enabled devices.

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/.
** Participation and subscription information for this EDUCAUSE 
Constituent Group discussion list can be found at 
http://www.educause.edu/groups/.



--
Jesse Safran
Sr. Desktop Supervisor/Assist. Network Admin
Green Mountain College
1 Brennan Circle
Poultney, VT 05764
802-287-0105 (Cell)
802-287-8264 (IT Computer Support Line)
safr...@greenmtn.edu<mailto:safr...@greenmtn.edu>
** Participation and subscription information for this EDUCAUSE 
Constituent Group discussion list can be found at 
http://www.educause.edu/groups/.


Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

2012-01-11 Thread Jeffrey Sessler
An auditorium with an 8-antenna 802.11ac AP running a 160Mhz channel, with 
nearly 7Gbps aggregate bandwidth, sounds pretty interesting to me.
 
We have faculty that have students downloading a lot of information during 
class, so even in smaller 12-25 person classrooms, the added bandwidth means 
less time it getting the information, and more time spent teaching. 
 
I also suspect that Apple will adopt the new standard in their laptops and 
desktops, so there is the chance you'll see 802.11ac capable devices within the 
next 12 months, and given that Apple's student share here at my campus is now 
~75%, that translates into a lot of 802.11ac capable devices.
 
Jeff

>>> On Tuesday, January 10, 2012 at 12:35 PM, in message 
>>> <943da0e70434ca499ad0088fb90eaade0e5...@suex10-mbx-05.ad.syr.edu>, Lee H 
>>> Badman  wrote:


Just as important as the high throughput is the better quality cells, the 
ability of MIMO to handle multipath, band steering and other features that make 
for a better radio cell with 11n. Wide channels in 5 GHz for 11n are a safe 
bet- there is usually enough channels to burn 40 MHz without penalty. But 80 
MHz and 160 MHz for 11ac 500 Mbps and Gig speeds? Sounds more consumer-oriented 
than enterprisey right now to me.
 
 
 

Lee H. Badman
Wireless/Network Engineer
Information Technology and Services
Adjunct Instructor, iSchool
Syracuse University
315 443-3003
 

 

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Rick Brown
Sent: Tuesday, January 10, 2012 3:01 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

 

While the high speeds may not be necessary, "perception is reality." They will 
be demanded because the capability is there!  IMHO in the 5GHz world there are 
enough channels to handle bonding them!  And...if you make the bandwidth 
available somebody will use it!

Sent from my iPhone


On Jan 10, 2012, at 2:42 PM, "Eric W. LaCroix"  wrote:



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  
 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  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.ed

RE: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

2012-01-11 Thread Andy Voelker
The consumer market loves new technology, and since this standardizes on the 
5GHz band only, it is my best friend.  Most of the RF problems we have is 
because too many computers are perfectly happy working on N on the 2.4 GHz 
range, yet there are too many legacy devices and mobile devices to cut off that 
band.  The freedom of having so many NON-OVERLAPPING channels to play with is 
GREAT!  Having the high bandwidth overhead is wonderful, especially since 
wireless technology has a high loss overhead.  Remember how many packets get 
transmitted that aren't actually payload.

However they are increasing the amount of bandwidth by reducing the number of 
channels.  This really screws enterprises, apartment complexes, and, well, 
anywhere with a high concentration of access points.  Again, this is not the 
technology of the future.  This will take us one step closer, but ultimately 
the channels and airwaves will saturate again before the next decade and we 
will be back to the drawing board again.  We need more channels AND more 
bandwidth, not one or the other for it to be truly future-ready.

-- Andy Voelker
Manager of Student Computing in the Technology Commons
Western Carolina University
Be sure to check out the WCU TechTips Podcast at 
http://www.youtube.com/WesternCarolinaU!!
Check the status of your IT requests at any time at http://help.wcu.edu/ !

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jeffrey Sessler
Sent: Wednesday, January 11, 2012 3:04 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

An auditorium with an 8-antenna 802.11ac AP running a 160Mhz channel, with 
nearly 7Gbps aggregate bandwidth, sounds pretty interesting to me.

We have faculty that have students downloading a lot of information during 
class, so even in smaller 12-25 person classrooms, the added bandwidth means 
less time it getting the information, and more time spent teaching.

I also suspect that Apple will adopt the new standard in their laptops and 
desktops, so there is the chance you'll see 802.11ac capable devices within the 
next 12 months, and given that Apple's student share here at my campus is now 
~75%, that translates into a lot of 802.11ac capable devices.

Jeff

>>> On Tuesday, January 10, 2012 at 12:35 PM, in message 
>>> <943da0e70434ca499ad0088fb90eaade0e5...@suex10-mbx-05.ad.syr.edu<mailto:943da0e70434ca499ad0088fb90eaade0e5...@suex10-mbx-05.ad.syr.edu>>,
>>>  Lee H Badman mailto:lhbad...@syr.edu>> wrote:
Just as important as the high throughput is the better quality cells, the 
ability of MIMO to handle multipath, band steering and other features that make 
for a better radio cell with 11n. Wide channels in 5 GHz for 11n are a safe 
bet- there is usually enough channels to burn 40 MHz without penalty. But 80 
MHz and 160 MHz for 11ac 500 Mbps and Gig speeds? Sounds more consumer-oriented 
than enterprisey right now to me.



Lee H. Badman
Wireless/Network Engineer
Information Technology and Services
Adjunct Instructor, iSchool
Syracuse University
315 443-3003


From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU]<mailto:[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU]>
 On Behalf Of Rick Brown
Sent: Tuesday, January 10, 2012 3:01 PM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Betr.: [WIRELESS-LAN] Gigabit Wi-Fi

While the high speeds may not be necessary, "perception is reality." They will 
be demanded because the capability is there!  IMHO in the 5GHz world there are 
enough channels to handle bonding them!  And...if you make the bandwidth 
available somebody will use it!

Sent from my iPhone

On Jan 10, 2012, at 2:42 PM, "Eric W. LaCroix" 
mailto:elacr...@newhampton.org>> wrote:
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  
mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> 
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