[109936] in North American Network Operators' Group

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Re: Gigabit Linux Routers

daemon@ATHENA.MIT.EDU (Alex Thurlow)
Wed Dec 17 11:33:28 2008

Date: Wed, 17 Dec 2008 10:33:15 -0600
From: Alex Thurlow <alex@blastro.com>
To: Chris <chris@ghostbusters.co.uk>, nanog@nanog.org
In-Reply-To: <c8a7026b0812170711r6cf4e109vc7eb26e7da91e05@mail.gmail.com>
Errors-To: nanog-bounces@nanog.org

Just as another source of info here, I'm running:

Dual Core Intel Xeon 3060 @ 2.4Ghz
2 Gb Ram (it says "Mem:   2059280k total,  1258500k used,   800780k
free,   278004k buffers" right now)
2 of these on the motherboard: Ethernet controller: Intel Corporation
82571EB Gigabit Ethernet Controller (rev 06) (port-channel bonded to my
switch)
One other card with 2 ports: Ethernet controller: Intel Corporation
82573E Gigabit Ethernet Controller (Copper) (rev 03)
Gentoo Linux with a fairly small kernel with FIB_TRIE enabled.

I'm taking in 2 full BGP feeds, a decent amount of iptables rules, and
I've hit 1.2 Gbps with no problems.  At this point, I just don't have
anything behind the router to push more than that.


--=20
Alex Thurlow
Blastro Networks

http://www.blastro.com
http://www.roxwel.com
http://www.yallwire.com


Chris wrote:
 > You've given me lots to think about ! Thanks for all the input so far.
 >
 > A few queries for the replies if I may. My brain is whirring.
 >
 > Chris: You're right and I'm tempted. I've almost had my arm twisted to=
 go
 > down the proprietory route as I have some Cisco experience but have=20
become
 > pretty familiar with Quagga and tc.
 >
 > David: May I ask which NICs you use in the IBM boxes ? I see the Intel=
s
 > recommended by Mike have dual ports on one board (the docs say "Two=20
complete
 > Gigabit Ethernet connections in a single device =95 Lower latency due=20
to one
 > electrical load on the bus").
 >
 > Patrick: That's what I was hoping to hear :) It's not the world's bigg=
est
 > network.
 >
 > Michael: Thanks very much. We have three upstreams. I guess 2GB of=20
RAM would
 > cover many more sessions.
 >
 > Eugeniu: That's very useful. The Intel dual port NICs mentioned=20
aren't any
 > good then I presume (please see my comment to David).
 >
 > Thanks again,
 >
 > Chris
 >
 >




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