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Switch port blocked alert not clearing after issue resolved

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Switch port blocked alert not clearing after issue resolved

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Switch port blocked alert not clearing after issue resolved
Switch port blocked alert not clearing after issue resolved
2023-02-23 06:22:29 - last edited 2023-02-23 20:19:21
Model: SG2210P  
Hardware Version: V3
Firmware Version: 3.20.8 Build 20221130 Rel.42340

Hi

 

- I have installed an Omada system

- Controller and all devices running latest firmware/software

- Controller is an OC200 v1.0 (firmware: 1.21.7 Build 20221206 Rel.58608)

- Switch A is a TL-SG2210P v3.20 (firmware: 3.20.8 Build 20221130 Rel.42340)

- I started getting "Switch A's port Gi1/0/6 was blocked” alerts

- I found that an ethernet cable had mistakenly been connected from Switch A Port 6 to Switch A Port 8

- I removed the ethernet cable, but new "Switch A's port Gi1/0/6 was blocked” alerts continued to be generated

- I connected my computer to port 6 and it worked perfectly, but new "Switch A's port Gi1/0/6 was blocked” alerts continued to be generated

- I disconnected my computer from port 6, but new "Switch A's port Gi1/0/6 was blocked” alerts continued to be generated

- I restarted Switch A, but new "Switch A's port Gi1/0/6 was blocked” alerts continued to be generated

- I restarted the Omada Controller, but new "Switch A's port Gi1/0/6 was blocked” alerts continued to be generated

- I changed the Switch A Port 6 profile to disabled, but new "Switch A's port Gi1/0/6 was blocked” alerts continued to be generated

- I reverted the Switch A Port 6 profile to “all", but new "Switch A's port Gi1/0/6 was blocked” alerts continued to be generated

 

100’s of these "Switch A's port Gi1/0/6 was blocked” alerts continue to be generated whilst there is nothing connected to port 6 and I am unable to clear them.

 

Any suggestions/help is appreciated.

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Re:Switch port blocked alert not clearing after issue resolved-Solution
2023-02-23 20:19:12 - last edited 2023-02-23 20:19:21

  @d0ugmac1 Thanks for the reply and suggestion.

 

I put in a call to TP-Link Support yesterday and got a call back last night after my last post. After explaining what I had tried, their suggestion was pretty much the same as yours - forget, factory reset and (re)adopt. They also suggested unplugging all of the cabling from the switch and plugging it back in but I don't understand how that would work, especially as I had rebooted the switch. It was late so I didn't do anything else last night. I did however ask that this problem be reported to the Omada developers as a bug so they can fix it. TP-Link Support agreed that when a loopback issue is fixed, the alerts should immediately stop.

 

This morning I have logged back in and all of the alerts have now stopped! I don't know why or how as nothing was changed whilst I was asleep and port 6 remains disconnected. Whilst I am happy the problem is gone, I'm not sure how to fix this problem in the future if it happens again - other than go to sleep!

 

Over to you TP-Link!

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Re:Switch port blocked alert not clearing after issue resolved
2023-02-23 09:33:29

  @Jason_G I edited port 6 on Switch A as follows:

 

Devices > Switch A > Ports > Port 6 > Profile Overrides > Loopback Control = Off

 

Then about 1 hour later:

 

Devices > Switch A > Ports > Port 6 > Profile Overrides > Remove Overrides

 

The "Switch A's port Gi1/0/6 was blocked” alerts still continued to be generated

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#2
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Re:Switch port blocked alert not clearing after issue resolved
2023-02-23 16:11:04

  @Jason_G 

 

Default the switch via it's hardware reset button and re-Adopt in after hours window (~5min downtime)?

<< Paying it forward, one juicy problem at a time... >>
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#3
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Re:Switch port blocked alert not clearing after issue resolved-Solution
2023-02-23 20:19:12 - last edited 2023-02-23 20:19:21

  @d0ugmac1 Thanks for the reply and suggestion.

 

I put in a call to TP-Link Support yesterday and got a call back last night after my last post. After explaining what I had tried, their suggestion was pretty much the same as yours - forget, factory reset and (re)adopt. They also suggested unplugging all of the cabling from the switch and plugging it back in but I don't understand how that would work, especially as I had rebooted the switch. It was late so I didn't do anything else last night. I did however ask that this problem be reported to the Omada developers as a bug so they can fix it. TP-Link Support agreed that when a loopback issue is fixed, the alerts should immediately stop.

 

This morning I have logged back in and all of the alerts have now stopped! I don't know why or how as nothing was changed whilst I was asleep and port 6 remains disconnected. Whilst I am happy the problem is gone, I'm not sure how to fix this problem in the future if it happens again - other than go to sleep!

 

Over to you TP-Link!

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