Everyone pointed out really good notes here as well but as far as I know
and this may have changed recently but if you do the 10Gbps / smallest
possible packet size you'll crush the CPU before it ever gets anywhere near
the disks.
I was trying to figure out a way to use iptables to do simple firewalling
at full line rate 10Gbps and it ate a bowl of fail big time (and that was
without any disk/io capturing).
I'm assuming perhaps newer PCI Express version 3 10G NICs will be released
that may be able to get you over that hump but for now it's really tricky
to do this on a single box.
Which is why vendors charge $50k for those ASIC based capturing boxes =)
Thanks,
-Drew
-----Original Message-----
From: [email protected] [mailto:
[email protected]] On Behalf Of Phil Bedard
Sent: Monday, January 09, 2012 2:13 PM
To: OBrien, Will
Cc: J NSP
Subject: Re: [j-nsp] Whitebox 10Gb/s capture challenge
How much traffic is actually on the boxes? A full 10G or some fraction?
Are they in the same datacenter? There are muxing boxes from
onpath,apcon, anue, net optics, etc. which might let you get away with
less actual capture devices. Keep in mind some of those solutions are
fairly expensive themselves...
Phil
On Jan 9, 2012,s at 11:05 AM, "OBrien, Will"<[email protected]>
wrote:
I'm pondering the idea of trying to build a relatively inexpensive 10Gb
capture box.
The simple solution is a dell R710 with 10Gb nics. I have some, they
work, but I'd have to spend $50k to get enough of them.
So, my challenge is keeping the price point is something around
$1000-$1500 - basically the 10Gb version of a 1u gigE capture system.
In general, I probably don't need to ever write 10Gb/s to disk, but it
would be nice load the dice for success.
My thoughts are a reasonable performance motherboard with 10Gb PCIe nics
or a white box mobo with onboard SFP+ ports.
Anyone gone this route?
Will O'Brien
University of Missouri, DoIT DNPS
Network Systems Analyst - Redacted
[email protected]
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