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RE: Wire-rate Packet Capture on 10gbE
From: Joe Happe <Joe.Happe () archlearning com>
Date: Fri, 29 Apr 2011 10:31:43 -0500

Might also take a look at Gigamon, Anue Systems, and similar vendors.  It's possible to use these switches to "slice 
and dice" traffic from a 10g input to a farm of 1g tools for packet capture, ids, waf, content filtering etc.  Although 
there is a cost, it's usually cheaper than having to upgrade multiple existing tools to 10g speeds.  It also solves the 
issues with the number of source span's allowed on many Cisco switches, and avoids the bus/disk issues tools run into 
when dealing with 10g linerates.  (For now at least)  


-----Original Message-----
From: Michael Holstein [mailto:michael.holstein () csuohio edu] 
Sent: Friday, April 29, 2011 9:44 AM
To: Kyle Creyts
Cc: nanog () nanog org
Subject: Re: Wire-rate Packet Capture on 10gbE

How is this being done? I've looked at looked at PF_RING and TNAPI... 
is there anything better out there?

Those two (thanks to Luca) can get you most of the way there, but to really hit the target you need dedicated kit like 
Endace (and a few
others) make. They basically do what was represented in the CCC slides somebody else posted (FPGA with own logic), but 
on a PCIe card.

Once you've got the ethernet -> interface problem addressed, you need to examine bottlenecks in interface->bus and 
particularly bus->disk.


Michael Holstein
Cleveland State Unversity




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