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Switches become unavailable for management

Switches become unavailable for management

Switches become unavailable for management
Switches become unavailable for management
2 weeks ago - last edited Friday
Model: TL-SG3452XP  
Hardware Version: V2
Firmware Version: 2.20.11 Build 20250628 Rel.74046

Hi.

There are SG3452XP switches (about 20 devices), adopted by Omada SDN (version 5.15.24.19).

Sometimes one can become unavailable for management - status in Omada becomes "disconnected" and it's impossible to login.

Can happen with any switch, and resolved by reboot.

While unavailable, they still continue working, they even answer ping. If you try to connect by console, they ask login/password, but hang up after you enter them.

We noticed that before problems start the utilization of CPU boosts from usual 6% up to 53%. They work for about 14 hours with that 54% utilization and eventually become unavailable.

Have you experienced same problems? What can be the solution?

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#1
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Re:Switches become unavailable for management-Solution
2 weeks ago - last edited Friday

  @AlexLite 

Thank you for your post. When the switch disconnects, please observe the port LEDs and the SYS LED—are they solid or flashing? Kindly collect the device info for analysis. If the SYS LED stays solid, the switch may have crashed; after rebooting and restoring service, run the CLI command show dump info and provide the output for further investigation.

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch
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#2
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Re:Switches become unavailable for management-Solution
2 weeks ago - last edited Friday

  @AlexLite 

Thank you for your post. When the switch disconnects, please observe the port LEDs and the SYS LED—are they solid or flashing? Kindly collect the device info for analysis. If the SYS LED stays solid, the switch may have crashed; after rebooting and restoring service, run the CLI command show dump info and provide the output for further investigation.

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch
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#2
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Re:Switches become unavailable for management
2 weeks ago

  @Ethan-TP Thank you for answering.

All LEDs are flashing.

I tried to run "show dump info", but there is no such command.

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#3
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Re:Switches become unavailable for management
2 weeks ago

We are facing the same problem as mentioned in this thread:

Access to management is lost - Business Community

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#4
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Re:Switches become unavailable for management
Friday

  @AlexLite 

When the issue re-appears, click on the device and, in the right-hand pop-up panel, locate “Device Info”; please export it and send it to us for analysis.

In addition, while the problem is occurring, access the device by SSH or console and collect the output of the following commands:

show running-config
show logging buffer
show cpu-utilization
show memory-utilization
show system-time
show system-time ntp
debug show ecs log
debug show ecs controller-conf
debug show ecs set-cfg 1
debug show ecs set-cfg 2
debug show ecs set-cfg 3
debug show ecs set-cfg 4
debug show ecs set-cfg 5

You may also try pinging the Controller IP address.

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch
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