Re: Changing maxsize of tcp receive window i 2.0.*

Alan Cox (alan@lxorguk.ukuu.org.uk)
Sat, 12 Sep 1998 19:06:15 +0100 (BST)

> is it possible to change the maximum size of tcp's receive
> window during run time i 2.0.*, esp. 2.0.35? I've found the line
> #define MAX_WINDOW 32767 in net/tcp.h, but would prefer
> to be able to change it without recompiling and rebooting.

On both 2.0 and 2.1.x setting SO_RCVBUF will affect the window too (the
window is about half of the receive buffer). Since 2.0.x doesnt support
window scaling 32K is the limit top end anyway. (Using >32K causes nasty
accidents with broken stacks that do signed maths on their windows)

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