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| Subject: | Re: IPS technology question. |
|---|---|
| Date: | Tue, 30 Aug 2005 16:12:39 -0400 |
On 8/30/05, THolman@toplayer.com <THolman@toplayer.com> wrote:
Hi David, A standard PCI bus (PCI-X, 133Mhz) is only capable of 1.06Gbps. This means 530Mbs in, and 530Mbs out, not taking into account things like hard-disks, logging/reporting and any packet inspection, which only serve to pull this number down further. It is architecturally impossible for a standard Intel platform to attain a throughput of anything higher than 530Mbs, let alone the 2Gpbs you claim below? A further explanation of these figures may help clear things up? Regards, Tim
Hi Tim, I do not build these systems for a living (like your company does), but I think you're quoting numbers for a standard 32 bit 33 MHz PCI bus (32 x 33 = 1056 Mbps). That's a theoretical maximum; users report something like 200-300 Mbps in production. The lowest-end PCI-X can handle more. I've seen user reports in the 500-600 Mbps range. Sincerely, Richard ------------------------------------------------------------------------ Test Your IDS Is your IDS deployed correctly? Find out quickly and easily by testing it with real-world attacks from CORE IMPACT. Go to http://www.securityfocus.com/sponsor/CoreSecurity_focus-ids_040708 to learn more. ------------------------------------------------------------------------
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