Re: Question the other way round:

On 11/15/2013 1:42 PM, Detlef Bosau wrote:
> Why do we need congestion at all?

No, but only if you use circuits. But then you've pushed the 
"congestion" overload situation to the circuit setup time, and not all 
circuits will succeed.

Or you could be omniscient ;-)

Otherwise, you need to deal with the fact that sometimes two packets 
want to go to the same output port and can't, and you didn't find that 
out until they collided.

Joe