what is the best config to ports on the Cisco Switch regarding Duplex & Speed;is auto config to both of them?OKK?
The answer is it depends. If you are connecting servers and clients then as long as they are also set to auto neogitiate you should be fine.
Where i work we leave clients on auto-negotiation, any servers that are a 100full capable we set to 100full on the switch and gigabit server connectikns should be left at auto.
I have seen many problems with incorrect speed/duplex settings. The key thing is to make sure that the network people who set up the switches and the server/desktop people are all communicating.
Between switches you cause auto.