if its determined that a LAN device is too far away from the switch, and its presently operating at 1000/full, is there any sense in changing the duplex setting from full to half?
If the LAN device (printer) can support it, I can see changing the speed setting to a slower speed (same CAT 6 cable), like 10 Mbps, but why change the duplex setting? How does that help? I think it would make it worse, if anything. Now you run the risk of creating collisions for no reason....I would leave it at 10/full.
There is no point to fix the speed/duplex at one end and leaving the other device at default as this always cause problems. I agree with you, you don't get any benefit if you are doing because of the distance. This option is only to help when different vendor equipments run into problems of correctly negotiating speed/duplex.
In many cases it is better to leave at auto/auto and only fix this if there is a prformance problem or you are seeing errors on the interface.
Victor, as far as I know for copper Ethernet, duplex setting nor speed should have anything to do with distance. Lower speed would allow lower grade CAT, but again, don't believe has impact on distance.
Reason for above, I believe has more to do with certain Ethernet timings and signal reflections, not strength of signal being usable by host at end of long copper run.
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