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

Matthew Petach mpetach at netflight.com
Sat Nov 6 22:19:38 CDT 2010


On Sat, Nov 6, 2010 at 5:21 PM, George Bonser <gbonser at seven.com> 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'd like to order a dozen of those 40ms RTT LA to NYC wavelengths, please.

If you could just arrange a suitable demonstration of packet-level delivery
time of 40ms from Los Angeles to New York and back, I'm sure there would
be a *long* line of people behind me, checks in hand.    ^_^

Matt




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