[129086] in North American Network Operators' Group
Re: IP characteristics for 3G and WiFi links
daemon@ATHENA.MIT.EDU (Matthew Kaufman)
Thu Aug 26 13:55:05 2010
Date: Thu, 26 Aug 2010 10:54:50 -0700
From: Matthew Kaufman <matthew@matthew.at>
To: Daniel Migault <mglt.biz@gmail.com>
In-Reply-To: <AANLkTimcqxY1uLSwZS=brv6d60FJ3x5zTYFUSaHwS9HO@mail.gmail.com>
Cc: nanog@nanog.org
Reply-To: matthew@matthew.at
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 8/26/2010 3:26 AM, Daniel Migault wrote:
> Currently we are considering the following values. Packet Lost Rate for L2
> seems 7% for Wifi and 5% for 3G. We are wondering how L3 is affected?
WiFi (802.11) uses ARQ to emulate a layer 2 network that has much much
lower loss than this (otherwise TCP really wouldn't work over it). I
suspect 3G is similar. So both these numbers are highly suspect.
Matthew Kaufman
