linux-kernel - Re: Network activity after route changes

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Message-ID: <4BCB373F.4070400@gmail.com>
Date:	Sun, 18 Apr 2010 17:45:51 +0100
From:	Matt <tank.en.mate@...il.com>
To:	Oleg Kutkov <elenbert@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Network activity after route changes

On 18/04/10 12:15, Oleg Kutkov wrote:
> Hello.
> I try to send and receive ethernet packets on very low level in my 
> kernel module.
> When i change (add or delete entry) routin table (via route command) 
> my network is freeze for ~15 seconds and my application can't send and 
> receive any packets.
> Is it normal or bug somewhere in my application?
> Can i change this behavior of route system? Maybe change some 
> timeouts, or immediately flush route (rt_flush() ?) table?

Depending on your routing configuration the change may be causing the 
problem. Have you tried flushing the route cache (as opposed to the main 
routing table)?

# ip route flush table cache

matt
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