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gigabitethernet0/0 is up, line protocol is down (disabled) in packet tracer

I am using Cisco packet tracer.I connected two routers using a crossover cable.My interface gigabitethernet0/0 is up while the line protocol is down (disabled) .

I used the no shutdown option.I also changed the speed and the duplex to auto mode.Still the line protocol is down.How to correct this?


Router#sh int

GigabitEthernet0/0 is up, line protocol is down (disabled)

  Hardware is CN Gigabit Ethernet, address is 00e0.8fc7.5901 (bia 00e0.8fc7.5901)

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

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

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s, media type is RJ45

  output flow-control is unsupported, input flow-control is unsupported

  ARP type: ARPA, ARP Timeout 04:00:00,

  Last input 00:00:08, output 00:00:05, output hang never

  Last clearing of "show interface" counters never

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

  Queueing strategy: fifo

  Output queue :0/40 (size/max)

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

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

     0 packets input, 0 bytes, 0 no buffer

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

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

     0 watchdog, 1017 multicast, 0 pause input

     0 input packets with dribble condition detected

     0 packets output, 0 bytes, 0 underruns


Hey,Try changing the device


Try changing the device.




Community Member

One router must be configure

One router must be configure as DCE and the another router must be configured as DTE

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