[c-nsp] about duplex

[Tseveendorj]

Hello,

I was reading about duplex need to find which one is give me good 
bandwidth and what is this. I have question about it.

How to configure duplex on router and switch port ?  These 2 ports are 
connected each other.
How do I troubleshooting duplex ? I saw router and switches log but 
nothing about duplex in it.

My understanding is If duplex mismatch and misconfigured it does 
bandwidth slowly. If I'm wrong please correct me.

I got the basic understanding on this link. 
http://en.wikipedia.org/wiki/Duplex_(telecommunications)

Best regards,
Tseveen.