[e2e] TCP Local Area Normal behaviour? any references?

[Joe Touch]

Michael Welzl wrote:
>>I did some tests on the ATOMIC LAN at ISI in the early 1990s. One part 
>>often ignored in simulations is that some TCPs basically ignore 
>>congestion control on a LAN - if the dest addr is inside the same subnet 
>>as the interface being sent, the software "assumes" they're on a LAN and 
>>that the best thing to do is fight it out at the MAC layer (not always a 
>>good assumption, we helped show).
> 
> 
> I can't believe anything like this if it was an "ATOMIC" LAN,
> as the name "ATOMIC" is synonymous with REALLY REALLY REALLY
> high speed where I live:
> 
> http://www.atomicsnow.com/
> 
> :-)
> 
> 
> The only appropriate use of the word "ATOMIC"...

FWIW, it was synonymous with high speed for us too:

www.isi.edu/div7/atomic
www.isi.edu/atomic2

ATOMIC originally stood for "ATm Over MosaIC", as in ATM over the Mosaic 
chipset from CalTech. MOSAIC was a CPU used as a mesh-connected 
multiprocessor, and it included a message switching component; ISI used 
an array of just the switching components as a packet switch for an 640 
Mbps LAN.

At that time (1995), 640 Mbps was fairly fast for a deployed, 
operational LAN.

Joe
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