[Oisf-users] Occasional burst of packet loss

Yasha Zislin coolyasha at hotmail.com
Tue Nov 4 16:38:53 UTC 2014


How do you increase socket buffers?
I've increased a lot of buffers already. That's why my memory utilization is high.I've also maxed out NIC buffers and PF_RING ring size.
Thanks.

> Date: Tue, 4 Nov 2014 08:11:36 -0800
> From: cnelson at ucsd.edu
> To: coolyasha at hotmail.com; oisf-users at lists.openinfosecfoundation.org
> Subject: Re: [Oisf-users] Occasional burst of packet loss
> 
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> Not sure if this works the same as with PF_RING, but I've found
> increasing the socket buffers can help with packet drops during DOS
> attacks when running in AF_PACKET mode.  eg:
> 
> > buffer-size: 1048576
> 
> On 11/3/2014 11:35 AM, Yasha Zislin wrote:
> > 
> > I guess, I am trying to figure out if there is a way to reduce packet
> > loss and improve performance while being attacked by either DDOS or
> > something else.
> > 
> > Thanks.
> > 
> 
> - -- 
> Cooper Nelson
> Network Security Analyst
> UCSD ACT Security Team
> cnelson at ucsd.edu x41042
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