To verify operation of a transceiver, view the LEDs on the transceiver. To find the LED locations on the interface modules, refer to LED activity interpretation. After you have connected and configured the ports for Ethernet connectivity and connected the cable to another active port, the LED becomes solid green. When traffic is detected on the port, the light becomes blinking green.
You can also enter the show interface status and show ip interface brief commands to verify proper transceiver operation.