netdev - Re: Maximum no of bytes Ethernet can transfer at a time ??

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Date:	Wed, 27 Apr 2011 14:21:50 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Ajit <ajitsa_bes@...oo.com>
Cc:	netdev@...r.kernel.org
Subject: Re: Maximum no of bytes Ethernet can transfer at a time ??

Le mercredi 27 avril 2011 à 12:11 +0000, Ajit a écrit :
> Guys,
> 
> I have developed a code which uses raw sockets to transfer files. My code skips
> all the upper layer protocols,I have designed a small protocol of my own.
> 
> Now to problem is, whenever I transfer a large file it creates a problem. If
> transfer a file of suppose 100kb or more, only 97.9 Kb is received, unlike in
> the case of files smaller that 97.9.
> 
> What can be the problem ?? Does continuously sending and receiving of frames
> creates a problem ??

Sure, check your syscall returns values, and search for SO_RCVBUF &
SO_SNDBUF   (man 7 socket)




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