speed & duplex Issue

[firoz.raj]

hi friends,today server is pinging . and in between it was time out automatic for some momemnt .and one of the network technician simple changed the speed & duplex to 10 mb half in place of auto .after that it is pinging like a charm .can anyone tell me what is a concept of duplex .
any help would be highly appreciated .


Attachment 95913

[stanav]

I'd fire that technician... Instead of fixing the source of the problem which is likely bad wiring and/or interferences on the line causing collisions/lost packages, he reduced the speed... That isn't an acceptable fix by any standard. As to answer your question, duplex means 2-way communication simultaneously. Half-duplex means 2 way communication but only 1 direction at any given time. By setting the speed of your gigabit nic to 10Mb half-duplex, he makes the connection 200 times slower.

[Jenner]

Well, that's actually a clever solution to getting the machine at least limping back online... provided there's going to be follow-up to fix the real problem. If this is the "fix" then .Agreed, fire him. That's totally unacceptable as a "solution".

He gimped the network card down to a low setting. At 10mbps half duplex, it's only using 4 of the 8 wires in the network cable; which is most likely your problem. Invest in a cable tester and check your switchboard's wiring. It will be either the 1-2 pair or the 7-8 pair that's bad.