If you use netflow the PIII-700 would probably still do it and then some. If you're using libpcap I have no clue. Probably 2GHz or better. That assumes you actually have 155Mb/s of data throughput - not just capacity. I'll start monitoring ... four Gig links soon - a total of about 1Gb of average utilization with bursts of 2 - 3Gb. I'll be curious to see what happens. There's some tech notes about monitoring high speed links and tweaks you can do to improve performance. Apparently you can do 1Gb wirespeed with certain NICS, drivers, and these tweaks. Check the FAQ's - I don't recall where I saw these notes.
Gary ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of ram Sent: Thursday, February 08, 2007 8:31 AM To: [email protected] Subject: Re: [Ntop] NTOP server --> Hardware requirements On 2/6/07, Gary Gatten <[EMAIL PROTECTED]> wrote: I have a PIII-750 monitoring (2) DS3's using netflow and a mirrored 100Mb Ethernet link at about 40% util. nTop CPU during peak loads is < 50%. Netflow drastically reduces the CPU required for nTop. Memory depends on the number of hosts you track. I'd say 512MB would be good to start. nTop for me uses about 370MB total - 250MB resident with about 3,000 internal hosts and at least that many external / internet hosts. Gary Hi how about monitoring 155Mbps traffic ram =========================================================================== "This email is intended to be reviewed by only the intended recipient and may contain information that is privileged and/or confidential. If you are not the intended recipient, you are hereby notified that any review, use, dissemination, disclosure or copying of this email and its attachments, if any, is strictly prohibited. If you have received this email in error, please immediately notify the sender by return email and delete this email from your system."
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