Switch Port not working Cisco 2960x series

[shyamradhe]

Hello All

I am facing one issue today,

I have 4 switch stack(2960x).

4 ports of switch have some issue( Gi 4/0/19 to 4/0/22)

Issue is like below.

When login, and check the status of these ports . it shows UP.

But physical LED of that port is down and not working.

I check same cable to connect with other port of same switch (Gi4/0/45)

then it works fine.no err-disable or any looping issue.!!

Speed and duplex are default from both side(user and port).

Can any one have any idea what may be the issue. ??

[Georg Pauwen]

Hello,

could be a bug...which IOS version are running ? Are the PoE ports ?

[shyamradhe]

Version- 15.2(2)E7 ,

yes Its PoE enabled switch

[Leo Laohoo]

Post the complete output to the command "sh interface Gi4/0/19 controll".

[shyamradhe]

Check below..

GigabitEthernet4/0/19 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is b4a8.b95e.da93 (bia b4a8.b95e.da93)
  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, 1000Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:03, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1387
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 1000 bits/sec, 1 packets/sec
     32089158 packets input, 7456502675 bytes, 0 no buffer
     Received 155477 broadcasts (133064 multicasts)
     0 runts, 0 giants, 0 throttles
     3 input errors, 3 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 133064 multicast, 1 pause input
     0 input packets with dribble condition detected
     73110049 packets output, 71069918554 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

     Transmit GigabitEthernet4/0/19           Receive
   2350443739 Bytes                       3161535379 Bytes
     63550406 Unicast frames                31933681 Unicast frames
      6135611 Multicast frames                133064 Multicast frames
      3424053 Broadcast frames                 22413 Broadcast frames
            0 Too old frames              3148732424 Unicast bytes
            0 Deferred frames                9103342 Multicast bytes
            0 MTU exceeded frames            3698523 Broadcast bytes
            0 1 collision frames                   0 Alignment errors
            0 2 collision frames                   3 FCS errors
            0 3 collision frames                   0 Oversize frames
            0 4 collision frames                   0 Undersize frames
            0 5 collision frames                   0 Collision fragments
            0 6 collision frames
            0 7 collision frames            20737102 Minimum size frames
            0 8 collision frames             2438702 65 to 127 byte frames
            0 9 collision frames             3184737 128 to 255 byte frames
            0 10 collision frames            2009873 256 to 511 byte frames
            0 11 collision frames            1098307 512 to 1023 byte frames
            0 12 collision frames            2620441 1024 to 1518 byte frames
            0 13 collision frames                  0 Overrun frames
            0 14 collision frames                  1 Pause frames
            0 15 collision frames
            0 Excessive collisions                 0 Symbol error frames
            0 Late collisions                      0 Invalid frames, too large
            0 VLAN discard frames                  0 Valid frames, too large
            0 Excess defer frames                  0 Invalid frames, too small
      5932857 64 byte frames                       0 Valid frames, too small
     11941403 127 byte frames
      8113299 255 byte frames                      0 Too old frames
      1624702 511 byte frames                      0 Valid oversize frames
      1163557 1023 byte frames                     0 System FCS error frames
     44334252 1518 byte frames                     0 RxPortFifoFull drop frame
            0 Too large frames
            0 Good (1 coll) frames
            0 Good (>1 coll) frames

[Leo Laohoo]

What happens if you move the cable to a different port?

[shyamradhe]

then it works, only mentioned ports (Gi 4/0/19 to 22) have this issue, even these ports were also working fine earlier .

[Georg Pauwen]

Hello,

what is the uptime of the switch (show version) ?

[shyamradhe]

uptime = 18 weeks,

[Leo Laohoo]

Post the complete output to the command "sh post".

[paul driver]

Hello

Unfortunately ports do break, more so if they are POE -  You cold try defaulting the interfaces check some statistics but it sounds like the ports are possible broken.

default int ran gig1/0/19 -22
sh interface gig1/0/xx status
test interfaces gig1/0/x
sh interface gig1/0 controller
show power inline gig1/0/x  (if applicable)

res

Paul

[shyamradhe]

Right now , now physical connection to this port (Gi 4/0/19) but it is still showing UP in status, but LED is down. other asked details are as below. after defaulting the port.

CINSUR01MKTSTK01#sho interfaces gigabitEthernet 4/0/19 status

Port      Name               Status       Vlan       Duplex  Speed Type
Gi4/0/19                     connected    1          a-full a-1000 10/100/1000BaseTX

CINSUR01MKTSTK01#test interfaces gigabitEthernet 4/0/19
No IP address for GigabitEthernet4/0/19.
Skipping...
1 interfaces: 0 passed, 0 failed, 0 skipped, 1 untestable


CINSUR01MKTSTK01#show power inline gigabitEthernet 4/0/19
Interface Admin  Oper       Power   Device              Class Max
                            (Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi4/0/19  auto   off        0.0     n/a                 n/a   30.0

Interface  AdminPowerMax   AdminConsumption
             (Watts)           (Watts)
---------- --------------- --------------------

Gi4/0/19              30.0                 15.4