[CentOS] Re: link speed

on 9-18-2008 12:37 PM Craig White spake the following:

On Thu, 2008-09-18 at 15:05 -0400, John Kordash wrote:

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Craig White írta:

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Is there a command line way to tell me whether a ethernet

connection is

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100 BaseT or Gigabit Ethernet?

mii-tool

My experience with mii-tool on CentOS4 and 5 is that it won't show link speed above 100 even if it is. If the OP is trying to differentiate 100 vs. 1000, then I would suggest using ethtool instead.

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yup...mii-tool didn't report what I wanted...

# mii-tool eth0: negotiated 100baseTx-FD flow-control, link ok eth1: negotiated 100baseTx-FD flow-control, link ok

but ethtool did...

mii-tool was written before such links existed.