Switch 1k led and sfp port

[md-abuzalath]

• "We have purchased 15 Cisco Catalyst 1000 switches, and all of them are exhibiting a variety of strange issues. Despite the switches and interfaces being up and running, the LED indicators are not functioning as expected. Additionally, when connecting an SFP while the device is powered off and then powering it on with the console connected, only 10 interfaces are detected. Furthermore, connecting an SFP to port 25 causes port 28 to go into an err-disable state, even though there is no SFP connected to port 28. We have attempted to resolve this issue by updating the firmware, but the problem persists. Moreover, some switches exhibit unusual SFP behavior, with some SFPs not lighting up at all, while others have all SFPs lit, regardless of whether there is a physical connection. This behavior is inconsistent and perplexing

   

  

   

  

   

[marce1000]

         >.... connecting an SFP to port 25 causes port 28 to go into an err-disable state
                        - Check the logs on the switch when that happens , 

 M.

[md-abuzalath]

How to check logs

[marce1000]

     - Issue the (CLI) command show logging on the switch (just after a port get's err-disabled)

   M.

)

[md-abuzalath]

*Mar 1 00:00:01.283:
Board SKU ID is (2)

*Mar 1 00:00:25.001: %STACKMGR-4-SWITCH_ADDED: Switch 1 has been ADDED to the stack
*Mar 1 00:00:26.066: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
*Apr 20 18:35:45.368: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Apr 20 18:35:45.866: %PNP-6-PNP_DISCOVERY_STARTED: PnP Discovery started
*Apr 20 18:35:48.508: %SYS-5-CONFIG_I: Configured from memory by console
*Apr 20 18:35:48.947: %STACKMGR-5-SWITCH_READY: Switch 1 is READY
*Apr 20 18:35:48.947: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 1 has changed to state DOWN
*Apr 20 18:35:48.947: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 1 has changed to state DOWN
*Apr 20 18:35:49.164: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C1000 Software (C1000-UNIVERSALK9-M), Version 15.2(7)E10, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2024 by Cisco Systems, Inc.
Compiled Tue 12-Mar-24 08:26 by mcpre
*Apr 20 18:35:49.341: %STACKMGR-5-MASTER_READY: Master Switch 1 is READY
*Apr 20 18:35:49.458: %SSH-5-ENABLED: SSH 1.99 has been enabled
*Apr 20 18:35:50.581: %LINK-5-CHANGED: Interface GigabitEthernet1/0/28, changed state to administratively down
*Apr 20 18:35:51.422: %USB_CONSOLE-6-MEDIA_RJ45: Console media-type is RJ45.
*Apr 20 18:35:53.983: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state to up
*Apr 20 18:35:54.464: %PNP-6-PNP_BEST_UDI_UPDATE: Best UDI [PID:C1000-24T-4G-L,VID:V02,SN:FOC2711YC1W] identified via (master-registry)
*Apr 20 18:35:54.464: %PNP-6-PNP_CDP_UPDATE: Device UDI [PID:C1000-24T-4G-L,VID:V02,SN:FOC2711YC1W] identified for CDP
*Apr 20 18:35:54.465: %PNP-6-PNP_DISCOVERY_STOPPED: PnP Discovery stopped (Startup Config Present)
*Apr 20 18:35:54.983: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/2, changed state to up
*Apr 20 18:36:22.043: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
*Apr 20 18:39:49.201: %SYS-5-CONFIG_I: Configured from console by console
*Apr 20 18:43:08.661: %PHY-5-TRANSCEIVERINSERTED: Slot=1 Port=25: Transceiver has been inserted
*Apr 20 18:43:08.676: %PHY-4-CHECK_SUM_FAILED: SFP EEPROM data check sum failed for SFP interface Gi1/0/28
*Apr 20 18:43:08.676: %PHY-4-CHECK_SUM_FAILED: SFP EEPROM data check sum failed for SFP interface Gi1/0/28
*Apr 20 18:43:08.698: %PHY-5-TRANSCEIVERINSERTED: Slot=1 Port=28: Transceiver has been inserted
*Apr 20 18:43:48.302: %PHY-5-TRANSCEIVERREMOVED: Slot=1 Port=25: Transceiver has been removed
*Apr 20 18:43:48.310: %PHY-5-TRANSCEIVERREMOVED: Slot=1 Port=28: Transceiver has been removed
*Apr 20 18:44:23.843: %SYS-5-CONFIG_I: Configured from console by console
*Apr 20 19:10:15.271: %PHY-5-TRANSCEIVERINSERTED: Slot=1 Port=25: Transceiver has been inserted
*Apr 20 19:10:18.211: %PHY-4-CHECK_SUM_FAILED: SFP EEPROM data check sum failed for SFP interface Gi1/0/28
*Apr 20 19:10:18.211: %PHY-4-CHECK_SUM_FAILED: SFP EEPROM data check sum failed for SFP interface Gi1/0/28
*Apr 20 19:10:18.233: %PHY-5-TRANSCEIVERINSERTED: Slot=1 Port=28: Transceiver has been inserted

I dont have stack port or stack i do reset

 But in the log show stack

[md-abuzalath]

@marce1000 

[marce1000]

    (from logs)   >...%PHY-4-CHECK_SUM_FAILED: SFP EEPROM data check sum failed for SFP interface Gi1/0/28
                   Remove and reinsert the SFP. If you get the same error  again in the same way, the SFP (for this port) may be defective
                       ===> replace it with another one.

                                    + Check logs again afterwards to check if the problem has gone away or not

 M.

[md-abuzalath]

Wedding-MainCab-sw1#show inventory
NAME: "1", DESCR: "C1000-8T-2G-L"
PID: C1000-24T-4G-L , VID: V02 , SN: FOC2711YC1W

what happens

[md-abuzalath]

[md-abuzalath]

@marce1000 what about this the switch is 24 port but just i see 10

[md-abuzalath]

When I remove the SFP module and restart the device, the switch shows 24 ports. However, when I reconnect the SFP module, only 10 ports are displayed. Additionally, the SFP module status shows as 'Connected,' but the LED does not light up.

[md-abuzalath]

@marce1000I obtained a new Multi-Mode SFP module, connected it, and the switch functioned normally. Is there a way to temporarily use a faulty SFP module? Buying and receiving a new one will take time, and I need to deliver a project urgently."

[marce1000]

 - The switch can not be used with a faulty SFP module.

 M.

[md-abuzalath]

but it's new i have 15 sfp and is supported but why this happend