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Can we use a Gigabit Ethernet NIC card with 10/100GB network?

Posted on 2006-06-12
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Last Modified: 2013-11-09
Hi:

All the servers we currently have use 10/100 GB NIC cards. We're ordering a new server that is equiped only with Gigabit Ethernet card. Can the Gigabit NIC card be used with the normal network?

If you've some idea about this, please help.

Thanks  a lot,

Somits

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Question by:somits
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Lee W, MVP earned 400 total points
ID: 16889296
Yes, GB NICs operate at 10, 100, 1000 depending on the port it's connected to.  In some cases if your wiring is not up to par, you may have to manually set the NIC driver to use a lower speed, but there should be no significant problem otherwise.
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by:somits
ID: 16889327
Hi leew:

Thanks a lot for your help. You mentioned that sometimes we've to set the NIC driver to use lower speed. Does this kind of configuration complicated to do?

Thanks,

Somits
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by:NetAdmin2436
ID: 16889330
Yes you can use them as they are 10/100/1000, but they won't be any faster in a 10/100 network. They will autonegotiate to 100 mb in your network. This is pretty standard now-a-days for new computers/servers to come equiped with 1GB NIC's

Hope this helps
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by:Lee W, MVP
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Odds are you won't have to, but if you do, it's a little setting in the driver properties.
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by:NetAdmin2436
NetAdmin2436 earned 100 total points
ID: 16889424
No, it's easy to do what leew is talking about. Go into device manager, then scroll down to your network adapters, then right click on your network adapter and choose properties. On the advanced tab, go to link speed. There you can change the speeds.

Normally Windows will do this automatically for you.
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by:Lee W, MVP
ID: 16889476
Also, I've only seen this problem on a network where we added a Gb switch with old wiring.  The negotiation kept resetting and wouldn't work unless we replaced the building wiring or set things to run at 100Mb instead of GBb
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