How can I check the integrity of the router or switched interfaces?

[enzo80]

I have router interface that keeps going up and down for the past 2 days, we had electric shorts, but now it has been solved, but ever since the interfaces of the routers keep going up and down:

error is :

tracking-5-state: 2 interface gi0/1 line protocol Up->Down

tracking-5-state: 2 interface gi0/1 line protocol Down ->Up

tracking-5-state: 2 interface gi0/1 line protocol Up->Down

tracking-5-state: 2 interface gi0/1 line protocol Down ->Up

tracking-5-state: 2 interface gi0/1 line protocol Up->Down

tracking-5-state: 2 interface gi0/1 line protocol Down ->Up

for the past few days from show history all command

[Leo Laohoo]

Post the complete output to the command "sh interface <PORT>".  

[enzo80]

MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 1Gbps, media type is RJ45
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 286244
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 1591000 bits/sec, 178 packets/sec
5 minute output rate 149000 bits/sec, 103 packets/sec
674275460 packets input, 2169423789 bytes, 0 no buffer
Received 214769 broadcasts (0 IP multicasts)
129131 runts, 0 giants, 0 throttles
361524 input errors, 132075 CRC, 2 frame, 2 overrun, 0 ignored
0 watchdog, 102309 multicast, 0 pause input
520802633 packets output, 4245801520 bytes, 0 underruns
19177 output errors, 127269 collisions, 1 interface resets
0 unknown protocol drops
0 babbles, 4227850239 late collision, 0 deferred
25183 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

[marce1000]

                                        >...361524 input errors, 132075 CRC, 

  As others indicate look like a physical link problem, check cabling or replace and look at faulty connections too , same applies at other end. Interface counters may need to be examined over there too. If actions are taken don't forget to zero the counters , so then you have more easy view as to whether issues are resolved (or not).

 M.

[Leo Laohoo]

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@enzo80 wrote:

361524 input errors, 132075 CRC
19177 output errors, 127269 collisions

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Input errors AND output errors.  I do not see that too often.  Two-for-one special.  

Did someone configure the ports speed manually?

[Georg Pauwen]

Hello,

there should be numerous 'test' exec commands:

Router#test ?

Check which ones are available...

[balaji.bandi]

what model of switch ?

i would first check the patch cable and replace with new one - since you mentioned short circuit thinking port might have malfunctioning, do you have any spare port, so move the config and test it.

[marce1000]

 - Also have a look at the interface counters ( show interface gi0/1  )

 M.