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Re: Multiple gigabit cards
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: Re: Multiple gigabit cards
- From: Martin Schröder <martin_(_at_)_oneiros_(_dot_)_de>
- Date: Sun, 23 Mar 2003 18:18:24 +0100
- Mail-followup-to: misc_(_at_)_openbsd_(_dot_)_org
- Organization: ArtCom GmbH, Lise-Meitner-Strasse 5, 28359 Bremen, Germany
On 2003-03-23 09:59:25 -0600, Breen Ouellette wrote:
> Max theoretical bandwidth of gigabit ethernet = 1000Mbits/sec,
> therefore 125MBytes/sec each card. If your four cards are hitting
> peak theoretical you will see 500MB/sec throughput, so only a
> 64bit/66MHz PCI bus will do (and you will only have 28MB/sec bandwidth
> remaining for all other PCI).
This assumes that all cards are on one bus. Modern (server)
boards put each PCI slot on a separate bus.
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