[131884] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: RINA - scott whaps at the nanog hornets nest :-)

daemon@ATHENA.MIT.EDU (Jack Bates)
Sat Nov 6 21:58:23 2010

Date: Sat, 06 Nov 2010 20:58:13 -0500
From: Jack Bates <jbates@brightok.net>
To: nanog@nanog.org
In-Reply-To: <5A6D953473350C4B9995546AFE9939EE0B14C7E3@RWC-EX1.corp.seven.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On 11/6/2010 7:21 PM, George Bonser wrote:
>
> (quote)
> Let's take an example: New York to Los Angeles. Round Trip Time (rtt) is
> about 40 msec, and let's say packet loss is 0.1% (0.001). With an MTU of
> 1500 bytes (MSS of 1460), TCP throughput will have an upper bound of
> about 6.5 Mbps! And no, that is not a window size limitation, but rather
> one based on TCP's ability to detect and recover from congestion (loss).
> With 9000 byte frames, TCP throughput could reach about 40 Mbps.

I prefer much less packet loss in a majority of my transmissions, which 
in turn brings those numbers closer together.


Jack


home help back first fref pref prev next nref lref last post