On 29/10/2012 13:26, Jerry Geis wrote:
ck your duplex. I have had two recent problems with duplex:
One, with a Cisco router - it auto-negotiated every time to half duplex, even
though it really -was- full. Use mii-tool to find out.
Just a note, auto-negotiation of 10/100 links will not work reliably
unless both sides of the link are set to auto-negotiate.
If one side is set to 100/full, and the other side is set to auto
negotiate, then it will try to negotiate, the side that is hard coded
100/full will _NOT_ negotiate and negotiation will fail, the side that
was set to auto negotiate will fail back to a 'fail-safe' 10/half duplex
link.
My rule of thumb, static link (e.g. those to servers, inter switch
links, switch to router links etc...) should just be hard coded. Links
that might have a variety of devices connected to them, e.g. the access
layer ports - set them to auto-negotiate.
--
Regards,
Giles Coochey, CCNA, CCNAS
NetSecSpec Ltd
+44 (0) 7983 877438
http://www.coochey.net
http://www.netsecspec.co.uk
gi...@coochey.net
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