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Re: Gigabit Linux Routers


From: David Coulson <david () davidcoulson net>
Date: Wed, 17 Dec 2008 10:14:55 -0500

The boxes (3650s) came with Broadcom BCM5708 on-board, but I push most of my traffic over these:

1c:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06)
       Subsystem: Intel Corporation PRO/1000 PT Dual Port Server Adapter
       Flags: bus master, fast devsel, latency 0, IRQ 58
       Memory at c7ea0000 (32-bit, non-prefetchable) [size=128K]
       Memory at c7e80000 (32-bit, non-prefetchable) [size=128K]
       I/O ports at 6020 [size=32]
       Capabilities: [c8] Power Management version 2
Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
       Capabilities: [e0] Express Endpoint IRQ 0
       Capabilities: [100] Advanced Error Reporting

There are four Intel ports in the boxes, so traffic may or may not stay on the same PCI-X card depending how things are flowing.

Chris wrote:
David: May I ask which NICs you use in the IBM boxes ? I see the Intels
recommended by Mike have dual ports on one board (the docs say "Two complete
Gigabit Ethernet connections in a single device • Lower latency due to one
electrical load on the bus").



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