RELENG_8 ignoring TCP window size? [Was: Re: Help for TCP understanding wanted, ACK-MSS-Window [Was: Re: best practice to watch TCP parms of established sockets]]

Harald Schmalzbauer h.schmalzbauer at omnilan.de
Thu Feb 18 21:41:45 UTC 2010


Kevin Oberman schrieb am 18.02.2010 20:23 (localtime):
...
> window allows for many packets to be in flight and with a 3 Gbps flow,
> that is a LOT of data. While an ACK is sent every two packets of
> received data, the transmitting side does not wait for the ACKs. It
...
> That is a VERY simple and incomplete explanation of what is happening
> with the window, but most of that is irrelevant in local transfers with

Thanks a lot, then I understood it at least half correct ;) My 
missunderstanding was that I thought the receiver would reduce ACKs... 
Now I know more :)
But unfortunately that makes it more mysterious where the throughput 
problem lies...

Thanks to everyone so far,

-Harry

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