[94955] in North American Network Operators' Group
Re: wifi for 600, alex
daemon@ATHENA.MIT.EDU (Robert E. Seastrom)
Thu Feb 15 11:25:25 2007
To: Marshall Eubanks <tme@multicasttech.com>
Cc: "Pickett, McLean (OCTO)" <mclean.pickett@dc.gov>,
Todd Vierling <tv@pobox.com>,
Suresh Ramasubramanian <ops.lists@gmail.com>,
Carl Karsten <carl@personnelware.com>, NANOG <nanog@merit.edu>
From: "Robert E. Seastrom" <rs@seastrom.com>
Date: Thu, 15 Feb 2007 11:21:22 -0500
In-Reply-To: <107D5502-DAFA-4CF4-A20D-EAB3C17E9DFA@multicasttech.com> (Marshall Eubanks's message of "Thu, 15 Feb 2007 09:50:51 -0500")
Errors-To: owner-nanog@merit.edu
Inasmuch as anyone with an ICBM (Intel-Chip-Based-Mac) has 802.11a
capability, and such devices have been gaining increasing traction
among geeks of late, I'm not surprised. The latest Airport Extreme
base station from Apple is A/B/G/N (the Express is still b/g).
---rob
Marshall Eubanks <tme@multicasttech.com> writes:
> The IETF experience is that enough people run 802.11a to take
> significant load off of the {b,g} network.
>
> Marshall
>
> On Feb 15, 2007, at 9:45 AM, Pickett, McLean (OCTO) wrote:
>
>>
>>
>> Works well if everyone has 802.11a/g card. That's been my biggest
>> concern
>> with deploying 802.11a recently.
>>
>> McLean
>>
>> -----Original Message-----
>> From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On
>> Behalf Of Todd
>> Vierling
>> Sent: Thursday, February 15, 2007 12:02 AM
>> To: Suresh Ramasubramanian
>> Cc: Marshall Eubanks; Carl Karsten; NANOG
>> Subject: Re: wifi for 600, alex
>>
>>
>> On 2/14/07, Suresh Ramasubramanian <ops.lists@gmail.com> wrote:
>>> 4. Isolate the wireless network from the main conference network /
>>> backbone so that critical stuff (streaming content for workshop and
>>> other presentations, the rego system etc) gets bandwidth allocated to
>>> it just fine, without it being eaten up by hungry laptops.
>>
>> The oft-overlooked 802.11a is great for this purpose when there isn't
>> enough wiring infrastructure to drop a RJ45 in all the necessary
>> conference rooms. Whereas 802.11[bgn] has only three (or four,
>> depending on who you quote) mostly non-overlapping frequencies -- even
>> less when MIMO is in use -- 802.11a has eight *completely*
>> non-overlapping standard channels. In nice open conference hall space
>> with at most two walls in the way, the rated shorter range of 11a is
>> actually not so noticeable because of the lack of radio noise.
>>
>> 2.4GHz is soooooo last decade. ;)
>>
>> (The 802.11[bgn] density where I live is so high that I resorted to
>> installing 802.11a throughout my house. Zero contention for airwaves
>> and I can actually get close to rated speed for data transmission.)
>>
>> --
>> -- Todd Vierling <tv@duh.org> <tv@pobox.com> <todd@vierling.name>
