[e2e] Question the other way round:

[Detlef Bosau]

Am 19.11.2013 19:15, schrieb Joe Touch:
>
>
> On 11/19/2013 10:09 AM, Dave Crocker wrote:
>> On 11/19/2013 9:07 AM, Joe Touch wrote:
>>>
>>>
>>> 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.
>>
>>
>>
>> Given the complete generality of the question that was asked, is there
>> something fundamentally deficient in the answer in:
>>
>>     http://en.wikipedia.org/wiki/Congestion_control#Congestion_control
>>
>> ?
>>
>> In particular, I think it's opening sentence is quite reasonable.
>
> I agree, but it jumps in assuming packets. Given packets, it's easy to
> assume that oversubscription is the natural consequence of avoiding
> congestion.
>

What is "oversubscription" all about in a
- connectionless
- reservationless
network?

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