Snort mailing list archives
RE: Snort-users digest, Vol 1 #3389 - 1 msg
From: "Dennis Henderson" <hendo () hendohome com>
Date: Tue, 29 Jul 2003 09:22:15 -0500
As a segue into gigabit on Solaris, I'd like to share some info on solaris with 100mb interfaces and some of the things we've done to maximize performance. I personally know of a snort setup where the box is a netra AC200 running solaris 8 with a qfe card. This box is running four separate snort processes, one assigned to each qfe interface. This box peaks out around 25K packets/sec on each qfe0 interface during peak usage. The box is pretty slammed at that level, but snort reports no drops. This performance level is attained by serious performance tuning parameters being set on the box. Out of the box, a solaris machine is not at its peak networking performance. Since tcp traffic comprises more than 90% of its traffic, setting tcp buffers to several megabytes helps the machine to make it thru periods of intense activity, buffering the overrun. Make sure solaris 8 has all the latest kernel and networking patches applied. The latest patches allow the os to switch from interrupts to polling as a means of getting data off the stack during high loads. This kicks performance up another notch. Ip syncq streams are also cranked up from a default of 2 to 100. we've seen as many as 50 or so streams in use, we probably can dial the parameter back to 60 and save some memory. Netstat -k reveals a very small amount of stack discard at peak times, but it is acceptable for the time being. Look for "nocanput" values in the report. Since gig-e uses the same frame size as 100mb, the packet rate will be the thing that increases, so I'm farily confident that our performance tuning parameters will help us get pretty far up the gig food chain. We're planning to utilize a fully loaded V210 on the net with quad gig-e ports. This box will have dual 1 Gig procs and should really roar with our custom tuning parameters applied. These interfaces are hardwired to the motherboard, So I hope to utilize 64 bit bus transfers instead of the 32 bit with the netra. hendo -----Original Message----- From: snort-users-admin () lists sourceforge net [mailto:snort-users-admin () lists sourceforge net] On Behalf Of snort-users-request () lists sourceforge net Sent: Monday, July 28, 2003 10:32 PM To: snort-users () lists sourceforge net Subject: Snort-users digest, Vol 1 #3389 - 1 msg Send Snort-users mailing list submissions to snort-users () lists sourceforge net To subscribe or unsubscribe via the World Wide Web, visit https://lists.sourceforge.net/lists/listinfo/snort-users or, via email, send a message with subject or body 'help' to snort-users-request () lists sourceforge net You can reach the person managing the list at snort-users-admin () lists sourceforge net When replying, please edit your Subject line so it is more specific than "Re: Contents of Snort-users digest..." Today's Topics: 1. Re: Snort as a gigabit sensor ... on a Sun box (john) --__--__-- Message: 1 Date: Mon, 28 Jul 2003 22:35:30 -0400 From: john <john () bad-current net> To: twig les <twigles () yahoo com> Cc: snort-users () lists sourceforge net Subject: Re: [Snort-users] Snort as a gigabit sensor ... on a Sun box what's wrong with snort and solaris 8? On Mon, Jul 28, 2003 at 06:01:56PM -0700, twig les wrote:
From: twig les <twigles () yahoo com> To: snort-users () lists sourceforge net Subject: [Snort-users] Snort as a gigabit sensor ... on a Sun box Errors-To: snort-users-admin () lists sourceforge net List-Archive:
<http://sourceforge.net/mailarchive/forum.php?forum=snort-users>
X-Original-Date: Mon, 28 Jul 2003 18:01:56 -0700 (PDT) Date: Mon, 28 Jul 2003 18:01:56 -0700 (PDT) Hey all, since the crowd is chatting about gigabit sensors, can anyone tell me if they are using a Sun box to get anything over 150Mbps, maybe up to 300? I don't know much about Sun hardware and would prefer to avoid dropping $20,000 x 2. This box will have to run (sigh) Solaris 8. ===== ----------------------------------------------------------- Emo is what happens when the glee club goes punk. ----------------------------------------------------------- __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET.
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- RE: Snort-users digest, Vol 1 #3389 - 1 msg Dennis Henderson (Jul 29)