[c-nsp] asymmetrical performance inside core

[Mikael Abrahamsson]

On Mon, 1 Oct 2012, Tim Densmore wrote:

> Stab in the dark, but have you verified you don't have a duplex mismatch 
> anywhere?  IME, they can look exactly like that.

I seriously doubt you'd be able to get 30 megabit/s over somewhere with a 
duplex mismatch. My testing was done 7-8 years ago so things might have 
improved regarding TCP congestion algorithms, but I doubt it'd make that 
much of a difference. My experience is/was that with a duplex mismatch and 
10 or 100 megabit, you seldom got more than around 2 megabit/s of 
effective throughput using TCP.

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se