[e2e] Are Packet Trains / Packet Bursts a Problem in TCP?

[Fred Baker]

On Sep 27, 2006, at 7:46 PM, Lachlan Andrew wrote:
> If we pace packets out at a rate "window / RTT" then we transmit at  
> the same average rate as if we used ACK-clocking.  The only  
> difference is that the packets are sent with roughly equal spacing  
> in the case of pacing, and sent irregularly with pure ACK-clocking.

yes. But in my comments, we might do so at a time that we are not  
receiving acks that would clock us.

What Detlef appears to be proposing is that we pace all the time.  
Craig's paper and my comments are to the effect that this is Really  
Hard to get right, and if it's not right, it's Really Wrong.