RE: 10 Mbit/s problem in your network

["Frank Bulk \(iname.com\)" <frnkblk () iname com>]

There's only 83.5 MHz to work with at 2.4 GHz, while in most countries you
have at least two hundred MHz in the 5 GHz range
(http://en.wikipedia.org/wiki/U-NII).  So if you choose to have 40 MHz
channels for increased throughput, you can have many more (non-overlapping
ones) at 5 GHz than 2.4 GHz, increasing Mbps/area.

Frank

-----Original Message-----
From: Owen DeLong [mailto:owen () delong com] 
Sent: Monday, February 25, 2013 10:34 AM
To: Frank Bulk
Cc: NANOG
Subject: Re: 10 Mbit/s problem in your network

Correct. However, while A is 5Ghz (only), it's not significantly better than
G.

The true performance gains come from 5Ghz and N together. N on 2.4Ghz has
limited benefit over G. N on 5Ghz is significantly better.

Owen

On Feb 24, 2013, at 8:56 PM, "Frank Bulk" <frnkblk () iname com> wrote:

> The IEEE 802.11n standards do not require 5 GHz support.  It's typical,
but
> not necessary.
>
> Frank
>
> -----Original Message-----
> From: Owen DeLong [mailto:owen () delong com] 
> Sent: Sunday, February 17, 2013 2:07 PM
> To: Jay Ashworth
> Cc: NANOG
> Subject: Re: 10 Mbit/s problem in your network
>
>
> On Feb 17, 2013, at 08:33 , Jay Ashworth <jra () baylink com> wrote:
>
> > ----- Original Message -----
> > > From: "Scott Howard" <scott () doc net au>
> >
> > > > A VPN or SSH session (which is what most hotel guests traveling for
> > > > work will do) won't cache at all well, so this is a very bad idea.
> > > > Might improve some things, but not the really important ones.
> > >
> > > The chances of the average hotel wifi user even knowing what SSH means
> > > is close to zero. 
> >
> > {{citation-needed}}
> >
> > > As an aside, I was sitting in JFK airport (terminal 4) a few days ago
and
> > > having a shocking time getting a good internet connection - even from my
> > > own Mifi. I fired up inSSIDer, and within a few seconds it had detected
> > > 122 AP's...
> >
> > Yup; B/G/N congestion is a real problem.  Nice that the latest generation
> > of both mifi's and cellphones all seem to do A as well, in addition to 
> > current-gen business laptops (my x61 is almost 5 years old, and speaks
A).
> >
>
> I think by A you actually mean 5Ghz N. A doesn't do much better than G,
> though
> you still have the advantage of wider channels and less frequency
congestion
> with other uses.
>
> Owen