Having a doubt regarding port becoming err disabled on trunk port.

[13jobsp90]

I am having a doubt regarding an uplink port on both the switches (core switch & Server farm switch).For trial we have given 1  fiber 10G connection between core and server switch in multimode cable with SFP 10SR module(which is for multimode). But after connecting both the ends it works immediately, but after working for sometime around 5 or 6 hours from server farm switch the uplink port showed err disabled hence the connection is lost between core and Server switch, only in the server switch that trunk port is showing err disabled, but in core switch no log is showing just that the trunk port is off.Thats it. What is the issue for this. This is happening for the 2nd time during the trial.Please guide

[Leo Laohoo]

What is the complete output to the command:

sh interface status err

[13jobsp90]

Tem_Serverfarm_Switch#sh interfaces status err-disabled
Port Name Status Reason Err-disabled Vlans

Te1/1/8 err-disabled gbic-invalid

[MHM Cisco World]

no errdisable detect cause gbic-invalid

Check this 

MHM 

[13jobsp90]

what is the meaning of this command? we use "Cisco SFP-10G-SR" - module, switch model  is (ws-c3850-24xu) 

[MHM Cisco World]

This command use when you insert other vendor sfp into cisco SW 

But as you post sfp is cisco so plesse dont run command and follow with Mr. @Leo Laohoo  he is expert in these issue.

Thanks a lot 

MHM

[Leo Laohoo]

Either update the firmware of the switch or get a 3rd party non-Cisco branded equivalent of the SFP-10G-SR.   Try everyone's favorite, FS[.]com.

NOTE:  Optic port goes into error-disable after "several hours" and caused by "invalid GBIC" is a weird behaviour.  I would be expecting the reason for the error-disable to be loopback or excessive flapping.  

Please post the complete output to the command "sh interface Ten 1/1/8 controll".

[13jobsp90]

Hi i have now reconneced to the 1/1/2port from port 1/1/8, only transceiver is inserted not the fiber cable. After removing the transceiver from 1/1/2 it goes to to err disabled port status without even connecting the fiber uplink.here is the output below:

Tem_Serverfarm_Switch#sh interfaces tenGigabitEthernet 1/1/2 controller
TenGigabitEthernet1/1/2 is down, line protocol is down (err-disabled)
Hardware is Ten Gigabit Ethernet, address is b090.7ed5.111e (bia b090.7ed5.111e)
MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex, Auto-speed, link type is auto, media type is unknown
input flow-control is on, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (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 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
Output 0 broadcasts (0 multicasts)
0 output errors, 0 collisions, 2 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 TenGigabitEthernet1/1/2 Receive
0 Total bytes 0 Total bytes
0 Unicast frames 0 Unicast frames
0 Unicast bytes 0 Unicast bytes
0 Multicast frames 0 Multicast frames
0 Multicast bytes 0 Multicast bytes
0 Broadcast frames 0 Broadcast frames
0 Broadcast bytes 0 Broadcast bytes
0 System FCS error frames 0 IpgViolation frames
0 MacUnderrun frames 0 MacOverrun frames
0 Pause frames 0 Pause frames
0 Cos 0 Pause frames 0 Cos 0 Pause frames
0 Cos 1 Pause frames 0 Cos 1 Pause frames
0 Cos 2 Pause frames 0 Cos 2 Pause frames
0 Cos 3 Pause frames 0 Cos 3 Pause frames
0 Cos 4 Pause frames 0 Cos 4 Pause frames
0 Cos 5 Pause frames 0 Cos 5 Pause frames
0 Cos 6 Pause frames 0 Cos 6 Pause frames
0 Cos 7 Pause frames 0 Cos 7 Pause frames
0 Oam frames 0 OamProcessed frames
0 Oam frames 0 OamDropped frames
0 Minimum size frames 0 Minimum size frames
0 65 to 127 byte frames 0 65 to 127 byte frames
0 128 to 255 byte frames 0 128 to 255 byte frames
0 256 to 511 byte frames 0 256 to 511 byte frames
0 512 to 1023 byte frames 0 512 to 1023 byte frames
0 1024 to 1518 byte frames 0 1024 to 1518 byte frames
0 1519 to 2047 byte frames 0 1519 to 2047 byte frames
0 2048 to 4095 byte frames 0 2048 to 4095 byte frames
0 4096 to 8191 byte frames 0 4096 to 8191 byte frames
0 8192 to 16383 byte frames 0 8192 to 16383 byte frames
0 16384 to 32767 byte frame 0 16384 to 32767 byte frame
0 > 32768 byte frames 0 > 32768 byte frames
0 Late collision frames 0 SymbolErr frames
0 Excess Defer frames 0 Collision fragments
0 Good (1 coll) frames 0 ValidUnderSize frames
0 Good (>1 coll) frames 0 InvalidOverSize frames
0 Deferred frames 0 ValidOverSize frames
0 Gold frames dropped 0 FcsErr frames
0 Gold frames truncated
0 Gold frames successful
0 1 collision frames
0 2 collision frames
0 3 collision frames
0 4 collision frames
0 5 collision frames
0 6 collision frames
0 7 collision frames
0 8 collision frames
0 9 collision frames
0 10 collision frames
0 11 collision frames
0 12 collision frames
0 13 collision frames
0 14 collision frames
0 15 collision frames
0 Excess collision frames

LAST UPDATE 57654697 msecs AGO

[Leo Laohoo · Accepted solution]

Post the complete output to the command "sh idprom interface Ten 1/1/2".

[anwaryp]

Which is the model number of the SFP you are using?

[13jobsp90]

We use "Cisco SFP-10G-SR" - module, switch model  is (ws-c3850-24xu)