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New Member

gigabitethernet0/0 is up while the line protocol is down (disabled) .

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

New Member

Can you post your

Can you post your configuration for these 2 interfaces?

Have you added any IP address information to these interfaces? These are layer 3 interfaces and will not show as "up/up" without an IP address.

New Member

Your router does not get

Your router does not get signal from other end make sure that you configure the IP address on the other end to be on the same network with the your router for example, and also check clocking,DCE show be on the service provider site and DTE on the client side

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