To check router serial interface

Freetechexams#show interfaces s0/0

Serial0/0 is up, line protocol is up

  Hardware is PowerQUICC Serial

  Internet address is 1.1.1.1/8

  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,

    reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation HDLC, loopback not set

  Keepalive set (10 sec)

  Last input 00:00:05, output 00:00:02, output hang never

  Last clearing of”show interface” counters never

  Input queue: 0/75/0 (size/max/drops); Total output drops: 0

  Queueing strategy: weighted fair

  Output queue: 0/1000/64/0 (size/max/drops); Total output drops: 0

    Convesations 0/2/256 (active/max active/max total)

    Reserved Conversations 0/0 (allocated/max allocated)

  5 minute input rate 0 bits/sec, 0 packets/sec

  5 minute output rate 0 bits/sec, 0packets/sec

    2104 packets input, 133491 bytes. 0 no buffer

    Received 1280 broadcasts, 0 runts, 0 giants, 0 throttles

    1 input errors, 0 CRC, 1 frame, 0 overrun, 0 ignored, 0 abort

    4678 packets output, 329768 bytes, 0 underruns

    0 output errors, 0 collisions, 7 interface resets

    0 output buffer failures, 0 output buffers swapped out

    4 carrier transitions

DCD=up DSR=up DTR=up RTS=up CTS=up