[e2e] Congestion control as a hot topic in IETF

[Jon Crowcroft]

What has the wireless link got to do with it? The same is true of a wire.
The contention is for shared media, or shared buffer.
On 7 Mar 2013 21:58, "Detlef Bosau" <detlef.bosau at web.de> wrote:

> Am 06.03.2013 08:20, schrieb Jon Crowcroft:
>
>> congestion control does work on some single links if the link layer
>> supports a congestion feedback mechanism - switched ethernet (for
>> example) has a feedback mechanism and some people have used this in
>> data center modifications and used it to push the later 2 feedback
>> up (as well as back) to IP/TCP - ie trigger ECN from the layer 2
>>
>
> Assumed that ECN is not lost.
>
>>
>> this could easily also be done with contention information in
>> conventional and wireless ethernet on a single link
>> and could be triggerd from a cellular base station too if
>> you like
>>
>> but it isn't
>>
>> but it could be...
>>
>
> Frankly spoken, I don't see the need for congestion control in mobile
> links and WiFi. In these networks, we hardly have a full packet on the
> link, so sliding window per se is nonsense in these technologies. A simple
> use of stop'n wait would solve the problem.
>
>
> --
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>
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