The ports on c1900 are auto sensing 10/100,
so they would automatically map to the supported
speed and duplex of the connected device.
The options to watch are.
If using a hub with uplink port, use a straight
cable from the hub's uplink to switch port
and press the MDX button on the hub to cross
the cable at the hub side.
(2) If you using normal port between the hub
and the c1900 switch port, then you'll have to
use a cross cable for connection between them.
