Nics only preforming at 500 mbps
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A while ago I purchased http://www.newegg.com/Product/Product.aspx?Item=N82E16856205007 and have been happily using it. Recently I upgraded to gigabit and noticed that the nics only preform at 500 mbps. Does anybody know why they might be limited, and what I can do to fix it?
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CPU…
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Oh great that isn't really easy to replace. Is there any nettops that have dual nics that would be able to do a full gigabit or an I looking at a full sized rig.
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I take it you mean actual throughput? From the WAN through the LAN?
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A while ago I purchased http://www.newegg.com/Product/Product.aspx?Item=N82E16856205007 and have been happily using it. Recently I upgraded to gigabit and noticed that the nics only preform at 500 mbps. Does anybody know why they might be limited, and what I can do to fix it?
I'm using the same box and it seems to be running at a full gig, according to ifconfig and the switch it's plugged into on the lan side. I haven't tried measuring the actual transfer rate though.
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Presumably he's talking about actual throughput; in terms of reported link speed, it's always going to be either 10, 100 or 1000 with these cards.
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If you want actual 1Gbps throughput, between any two firewalled interfaces, you need to step up to a more powerful CPU. A G1610T perhaps. You won't see more than ~700Mbps with that Atom.
Steve
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I'm using the same box and it seems to be running at a full gig, according to ifconfig and the switch it's plugged into on the lan side. I haven't tried measuring the actual transfer rate though.
While ifconfig detects full gig when you try to actually utilize it you will be capped around 500 mbps. I thoroughly tested this using various methods, and you can see for yourself that it isn't full gig by transferring a large file between some internal computer and the firewall. (Or if you have gig internet then just run a speed test)
If you want actual 1Gbps throughput, between any two firewalled interfaces, you need to step up to a more powerful CPU. A G1610T perhaps. You won't see more than ~700Mbps with that Atom.
Steve
Actually the atom processor is capped at ~450 mbps. I ended up just building a new firewall with a AMD A6-6400K black. I considered the celeron, but decided to go with an AMD because it's cheaper, and I couldn't find anything that looked like it could actually drive full gig in a mini box.
**EDIT: the new cpu coupled with an intel nic and a realtek nic yields speed tests of 920mbps down and 875 mbps up good enough for me :)
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Thats good enough for pretty much anybody ;)
I like AMD - Seems to work well in this application.
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I'm actually quite surprised you couldn't get more than 450Mbps. I would have expected at least 500 with Broadcom NICs. With Intel NICs and some tuning you should see over 600Mbps with a 1.8GHz atom.
Steve
