SFP state down

[Chala]

Dear Cisco Community,

I have an issue with a cisco SFP transceiver not working

SFP Model= GLC-T

Switch used =catalyst 3650, 4500-x

when I insert and remove the SFP it shows on the syslog message but when I check the show interface transceiver' it shows 'no transceiver present' and the port status is down.

How can I solve this problem ?

Help here, please !

[Leo Laohoo]

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

I want to see the logs have to say after the optic was inserted.

[Chala]

Could you write the full Command here.

[Leo Laohoo]

Post the complete output to the following commands: 

sh version
sh logs

[Chala]

SW1#show version
Cisco IOS XE Software, Version 16.12.07
Cisco IOS Software [Gibraltar], Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 16.12.7, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2022 by Cisco Systems, Inc.
Compiled Wed 02-Feb-22 07:28 by mcpre

Cisco IOS-XE software, Copyright (c) 2005-2022 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0. For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.

ROM: IOS-XE ROMMON
BOOTLDR: CAT3K_CAA Boot Loader (CAT3K_CAA-HBOOT-M) Version 5.06, RELEASE SOFTWARE (P)

SW1 uptime is 1 hour, 34 minutes
Uptime for this control processor is 1 hour, 37 minutes
System returned to ROM by Power Failure or Unknown
System image file is "flash:packages.conf"
Last reload reason: Power Failure or Unknown

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Technology Package License Information:

------------------------------------------------------------------------------
Technology-package Technology-package
Current Type Next reboot
------------------------------------------------------------------------------
ipbasek9 Smart License ipbasek9
None Subscription Smart License None

Smart Licensing Status: UNREGISTERED/EVAL MODE

cisco WS-C3650-48TS (MIPS) processor (revision Q0) with 794816K/6147K bytes of memory.
Processor board ID FDO2130Q0W7
1 Virtual Ethernet interface
52 Gigabit Ethernet interfaces
2048K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.
250456K bytes of Crash Files at crashinfo:.
1609272K bytes of Flash at flash:.
0K bytes of WebUI ODM Files at webui:.

Base Ethernet MAC Address : 38:90:a5:c8:6f:00
Motherboard Assembly Number : 73-15900-05
Motherboard Serial Number : FDO21293BVG
Model Revision Number : Q0
Motherboard Revision Number : A0
Model Number : WS-C3650-48TS
System Serial Number : FDO2130Q0W7

Switch Ports Model SW Version SW Image Mode
------ ----- ----- ---------- ---------- ----
* 1 52 WS-C3650-48TS 16.12.07 CAT3K_CAA-UNIVERSALK9 INSTALL

Configuration register is 0x102

[Chala]

SW1#show log
Syslog logging: enabled (0 messages dropped, 2 messages rate-limited, 0 flushes, 0 overruns, xml disabled, filtering disabled)

No Active Message Discriminator.

No Inactive Message Discriminator.

Console logging: level debugging, 81 messages logged, xml disabled,
filtering disabled
Monitor logging: level debugging, 0 messages logged, xml disabled,
filtering disabled
Buffer logging: level debugging, 81 messages logged, xml disabled,
filtering disabled
Exception Logging: size (4096 bytes)
Count and timestamp logging messages: disabled
File logging: disabled
Persistent logging: disabled

No active filter modules.

Trap logging: level informational, 83 message lines logged
Logging Source-Interface: VRF Name:

Log Buffer (102400 bytes):

*Oct 8 06:07:51.479: %SMART_LIC-6-EXPORT_CONTROLLED: Usage of export controlled features is not allowed
*Oct 8 06:07:54.387: %SMART_LIC-6-AGENT_READY: Smart Agent for Licensing is initialized
*Oct 8 06:07:54.389: %SMART_LIC-6-AGENT_ENABLED: Smart Agent for Licensing is enabled
*Oct 8 06:07:54.392: %SMART_LIC-6-EXPORT_CONTROLLED: Usage of export controlled features is not allowed
*Oct 8 06:07:57.300: %SMART_LIC-6-HA_ROLE_CHANGED: Smart Agent HA role changed to Active.RA Tracing tool registry return: 0
*Oct 8 06:08:07.387: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Oct 8 06:08:09.053: %LINK-3-UPDOWN: Interface Lsmpi18/3, changed state to up
*Oct 8 06:08:09.055: %LINK-3-UPDOWN: Interface EOBC18/1, changed state to up
*Oct 8 06:08:09.056: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to down
*Oct 8 06:08:09.057: %LINK-3-UPDOWN: Interface LIIN18/2, changed state to up
*Oct 8 06:08:09.419: %HMANRP-6-HMAN_IOS_CHANNEL_INFO: HMAN-IOS channel event for switch 1: EMP_RELAY: Channel UP!
*Oct 8 06:08:09.442: %HMANRP-6-EMP_NO_ELECTION_INFO: Could not elect active EMP switch, setting emp active switch to 0: EMP_RELAY: Could not elect switch with mgmt port UP
*Oct 8 06:07:28.947: %STACKMGR-6-STACK_LINK_CHANGE: Switch 1 R0/0: stack_mgr: Stack port 1 on Switch 1 is nocable
*Oct 8 06:07:28.947: %STACKMGR-6-STACK_LINK_CHANGE: Switch 1 R0/0: stack_mgr: Stack port 2 on Switch 1 is down
*Oct 8 06:07:28.947: %STACKMGR-6-STACK_LINK_CHANGE: Switch 1 R0/0: stack_mgr: Stack port 2 on Switch 1 is nocable
*Oct 8 06:07:28.947: %STACKMGR-4-SWITCH_ADDED: Switch 1 R0/0: stack_mgr: Switch 1 has been added to the stack.
*Oct 8 06:07:33.721: %STACKMGR-4-SWITCH_ADDED: Switch 1 R0/0: stack_mgr: Switch 1 has been added to the stack.
*Oct 8 06:07:35.723: %STACKMGR-4-SWITCH_ADDED: Switch 1 R0/0: stack_mgr: Switch 1 has been added to the stack.
*Oct 8 06:07:35.723: %STACKMGR-6-ACTIVE_ELECTED: Switch 1 R0/0: stack_mgr: Switch 1 has been elected ACTIVE.
*Oct 8 06:08:09.446: %HMANRP-6-EMP_NO_ELECTION_INFO: Could not elect active EMP switch, setting emp active switch to 0: EMP_RELAY: Could not elect switch with mgmt port UP
*Oct 8 06:08:10.125: %LINEPROTO-5-UPDOWN: Line protocol on Interface Lsmpi18/3, changed state to up
*Oct 8 06:08:10.133: %LINEPROTO-5-UPDOWN: Line protocol on Interface EOBC18/1, changed state to up
*Oct 8 06:08:10.133: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
*Oct 8 06:08:10.133: %LINEPROTO-5-UPDOWN: Line protocol on Interface LIIN18/2, changed state to up
*Oct 8 06:08:12.091: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
*Oct 8 06:08:13.670: %SYS-7-NVRAM_INIT_WAIT_TIME: Waited 0 seconds for NVRAM to be available
*Oct 8 06:08:13.962: %SYS-5-CONFIG_P: Configured programmatically by process MGMT VRF Process from console as vty0
*Oct 8 06:08:13.974: %IOSXE_MGMTVRF-6-CREATE_SUCCESS_INFO: Management vrf Mgmt-vrf created with ID 1, ipv4 table-id 0x1, ipv6 table-id 0x1E000001
*Oct 8 06:08:13.976: %SYS-5-CONFIG_P: Configured programmatically by process MGMT VRF Process from console as vty0

[Leo Laohoo]

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

[Chala]

SW1#sh idprom interface gigabitEthernet 1/1/1

General SFP Information
-----------------------------------------------
Identifier : SFP/SFP+
Ext.Identifier : SFP function is defined by two-wire interface ID only
Connector : Unknown
Transceiver
10GE Comp code : Unknown
SONET Comp code : OC 48 short reach
GE Comp code : Unknown
Link length : Unknown
Technology : Unknown
Media : Single Mode
Speed : Unknown
Encoding : 8B10B
BR_Nominal : 1300 Mbps
Length(9um)-km : GBIC does not support single mode fibre
Length(9um) : GBIC does not support single mode fibre
Length(50um) : GBIC does not support 50 micron multi mode OM2 fibre
Length(62.5um) : GBIC does not support 62.5 micron multi mode OM1 fibre
Length(Copper) : 1000 m
Vendor Name : CISCO-Methode
Vendor Part Number : GLC-T
Vendor Revision : 0x42 0x32 0x20 0x20
Vendor Serial Number : MTC20170CDB
Wavelength : 16652 nm
CC_BASE : 0xDB
-----------------------------------------------

Extended ID Fields
-----------------------------------------------
Options : 0x00 0x10
BR, max : 0x00
BR, min : 0x00
Date code : 170923
Diag monitoring : Not Implemented
Internally calibrated : No
Exeternally calibrated: No
Rx.Power measurement : OMA
Address Change : Not Required
CC_EXT : 0xCD
-----------------------------------------------

Other Information
-----------------------------------------------
Chk for link status : 00
Flow control Receive : Off
Flow control Send : Off
Administrative Speed : auto
Administrative Duplex : auto
Operational Speed : auto
Operational Duplex : auto
-----------------------------------------------

SEEPROM contents (hex):
0x00: 03 04 00 00 00 00 08 00 00 00 00 01 0D 00 00 00
0x10: 00 00 64 00 43 49 53 43 4F 2D 4D 65 74 68 6F 64
0x20: 65 20 20 20 01 00 17 05 47 4C 43 2D 54 20 20 20
0x30: 20 20 20 20 20 20 20 20 42 32 20 20 41 0C C1 DB
0x40: 00 10 00 00 4D 54 43 32 30 31 37 30 43 44 42 20
0x50: 20 20 20 20 31 37 30 39 32 33 20 20 00 00 00 CD
0x60: 00 00 08 03 7A 81 DD 9D 29 99 A5 99 3B 40 D9 6C
0x70: 83 59 7D 00 00 00 00 00 00 00 00 00 22 90 B2 55
-----------------------------------------------

[Leo Laohoo]

---

@Chala wrote:

Vendor Serial Number : MTC20170CDB

---

Please post the complete output to the following commands: 

sh interface status err
sh int Gi 1/1/1

NOTE:  The optics is not Cisco-branded but "Cisco compatible".

[Chala]

#sh interface status err
Switch#sh interface status err-disabled
Switch#sh interface g1/1/1
GigabitEthernet1/1/1 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 3890.a5c8.6f31 (bia 3890.a5c8.6f31)
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 not set
Auto-duplex, Auto-speed, link type is auto, media type is 10/100/1000BaseTX SFP
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

[Leo Laohoo]

---

@Chala wrote:
media type is 10/100/1000BaseTX SFP

---

The switch can see the 3rd party GLC-T.  

And I am not seeing anything wrong.

[Chala]

Does this mean the problem is with the SFP.

[Leo Laohoo]

---

@Chala wrote:
Does this mean the problem is with the SFP.

---

There is no indication the SFP is faulty because nothing is connected to it.  

Connect something that is known to be working to the SFP and watch the logs.

[Chala]

FYI

Screenshotshow logs

[M02@rt37]

Hello @Chala 

Is it a Cisco SFP ? Some counterfeit or third-party SFPs may cause issues, such as being detected in the syslog but not fully recognized.

If you're using a third-party or non-Cisco SFP, you can bypass the transceiver validation check with the following command under config-termnal: service unsupported-transceiver