Monitoring Interfaces

From User Exec mode, use the following show commands to monitor and display the T3 interface, T1 interface, and HDLC serial data channel information:

• Monitor channelized T3 interfaces on a slot and port.

  host1#show controllers t3 0/1

• Monitor a T1 interface.

  host1#show controllers t3 0/1:1

• Monitor fractional T1 subchannels.

  host1#show controllers t3 ft1

• Monitor the state of the serial interface or a slot/port.

  host1#show controllers t3 serial 0/1