[ipxe-devel] IPXE TCP WindowSize setteing

Michael Brown mcb30 at ipxe.org
Thu Mar 3 19:10:50 UTC 2016

On 03/03/16 19:02, Christian Nilsson wrote:
> On Thu, Mar 3, 2016 at 12:04 PM, Reuven Neriya Bekhokhma
> <rbekokma at elta.co.il <mailto:rbekokma at elta.co.il>> wrote:
>     Can some one help please with *IPXE TCP WindowSize setteing*.
>     My *WindowSize *is *1 *and wil not change at all with big files (700MB).
> What are you booting? Commands or the contents of your script used to do
> this booting might be a good way for anyone to be able to help and give
> suggestions.

Also, which version of iPXE are you using.  A problem related to TCP 
window sizes on lossy links was fixed in June 2015:


and current iPXE will never reduce the TCP window size.

>     Also I will be thankfull for some tips regarding performance
>     improvment .

Best tip: use the latest version of iPXE.


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