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Old 20th January 2011
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jggimi jggimi is offline
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You might find a discussion on 10Gb firewall performance from the misc@ mailing list helpful. It took place in January and February of last year, and begins here:

http://marc.info/?l=openbsd-misc&m=126419505806549&w=2

You don't mention the architecture you run with your Sunfire X4100 (AMD Opteron). For 4.8, the 10Gb NIC support list is the same for both i386 and amd64 (from the Project website), though capabilities differ -- the difference is in the footnotes. Review the hardware support documents for the details.

For amd64:
Code:
10Gb Ethernet Adapters

    * Intel 82597 PRO/10GbE based PCI adapters (ixgb)
    * Intel 82598 PRO/10GbE based PCI adapters (ix)
    * Neterion Xframe/Xframe-II based PCI adapters (xge)
    * Tehuti Networks 10Gb based PCI adapters (tht), (G)
For i386:
Code:
10Gb Ethernet Adapters

    * Intel 82597 PRO/10GbE based PCI adapters (ixgb) (A) (B) (C)
    * Intel 82598 PRO/10GbE based PCI adapters (ix) (A) (B) (C)
    * Neterion Xframe/Xframe-II based PCI adapters (xge) (A) (B) (C)
    * Tehuti Networks 10Gb based PCI adapters (tht), (A) (B) (C)

Last edited by jggimi; 20th January 2011 at 08:16 PM. Reason: clarification
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