[e2e] tcp connection timeout
Joe Touch
touch at ISI.EDU
Fri Mar 3 12:46:46 PST 2006
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Vadim Antonov wrote:
> On Fri, 3 Mar 2006, Joe Touch wrote:
>
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>>
>>
>> Vadim Antonov wrote:
>>> On Fri, 3 Mar 2006, Joe Touch wrote:
>>>
>>>> Please explain the 20MB case.
>>>>
>>>> AFAICT, that only happens when the receiver window is 20MB, AND:
>>> TCP state is not the only state kept around when a connection is open.
>>>
>>> I thought that it was obvious that I meant the user-space state.
>>>
>>> --vadim
>> Wouldn't that be the user-space (application-layer)'s decision then?
>
> It does not matter whose decision it is as long as you have a way of
> purging it for dead connections. It was merely a counter-argument to the
> assertion that dead connections are "cheap". There are numerous cases when
> they are not.
We HAVE a way for applications to purge resources for connections THEY
think are dead - CLOSE or ABORT.
> I think it is always a good idea to look at the whole picture, because
> concentrating on one layer is bound to mislead.
Indeed - I (and others) are suggesting TCP isn't the place to focus in
this case.
Joe
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