%LINEPROTO-5-UPDOWN Regularily in ONE Directrion for 3 seconds

Unanswered Question
Jul 21st, 2009

Hello Folks!

Thanks for taking your time :)

I have a problem with a C750 Core with 4 Stacks. Actually i see on 2 Fiber GBIT IF the Line Protocol going down and up regularily. Its only on the Core. NOT on the other sides switch. He doesnt seem to recognize it.

Any idea?

018065: Jul 20 21:42:02: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to up

018066: Jul 20 22:56:59: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to down

018067: Jul 20 22:57:02: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to up

018068: Jul 20 22:58:57: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to down

018069: Jul 20 22:59:00: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to up

018070: Jul 20 23:14:39: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to down

018071: Jul 20 23:14:42: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to up

018072: Jul 21 01:10:34: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down

018073: Jul 21 01:10:37: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to up

018074: Jul 21 01:14:38: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down

018075: Jul 21 01:14:41: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to up

018076: Jul 21 02:04:11: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down

018077: Jul 21 02:04:14: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to up

018078: Jul 21 02:37:46: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down

018079: Jul 21 02:37:49: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to up

018080: Jul 21 02:50:50: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down

018081: Jul 21 02:50:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to up

018082: Jul 21 03:15:46: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down

018083: Jul 21 03:15:49: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to up

018084: Jul 21 04:26:15: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to down

018085: Jul 21 04:26:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to up

018086: Jul 21 07:38:27: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to down

018087: Jul 21 07:38:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/2, changed state to up

I see no errors on the Interfaces.

Thanks!

--edit--

also.. i had this on another port on the same switch -> we move it from 2/0/6 to 2/0/8 and now it works without a problem (also moving the GBIC!) i didnt have the error on 2/0/1 and 2/0/2 then. They began after moving 2/0/6 to 2/0/8

I have this problem too.
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kmmehlkmmehl Tue, 07/21/2009 - 00:32

- sh int Gi2/0/1

GigabitEthernet2/0/1 is up, line protocol is up (connected)

Hardware is Gigabit Ethernet, address is 0011.bb5f.4601 (bia 0011.bb5f.4601)

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, 1000Mb/s, link type is auto, media type is SX

output flow-control is off, input flow-control is off

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

Last input 00:00:35, output 00:00:02, output hang never

Last clearing of "show interface" counters 18:43:30

Input queue: 0/75/0/0 (size/max/drops/flushes); 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 10000 bits/sec, 16 packets/sec

8077 packets input, 927585 bytes, 0 no buffer

Received 1336 broadcasts (0 multicast)

0 runts, 0 giants, 0 throttles

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

0 watchdog, 1336 multicast, 0 pause input

0 input packets with dribble condition detected

766940 packets output, 90464686 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

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

kmmehlkmmehl Tue, 07/21/2009 - 01:23

IOS (tm) C3750 Software (C3750-I5-M), Version 12.1(14)EA1a, RELEASE SOFTWARE (fc1)

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