09-26-2021 07:24 AM
I have run into something odd and cannot seem to clear the error. This is a sg350x-24p unit with latest firmware. The LED status for PoE is showing up on incorrect ports. This is also true in the web interface. Under PoE settings, the ports show incorrectly. It’s consistent in its error so it’s not random. Under the web interface under system summary, the graphic display also shows the incorrect LED PoE status being shown. The system is fully factory restored and default configuration.
Here is the summary of the status error. I am using an Avigilon PoE camera to test. The consumption is roughly 3 watts and is displayed, but on the wrong port or not at all on some.
port 1 - shows 22
port 2 - shows 21
port 3 - shows 3 (correct)
port 4 - shows 4 (correct)
port 5 - shows no Status anywhere but PoE is active
port 6 - shows no Status anywhere but PoE is active
port 7 - no PoE power but supports non-PoE device
port 8 - shows no Status anywhere but PoE is active
port 9 - shows 5
port 10 - shows 6
port 11 - shows 7
port 12 - shows 8
port 13 - shows 9
port 14 - shows 10
port 15 - shows 15 (correct)
port 16 - shows 16 (correct)
port 17 - shows no status anywhere but PoE is active
port 18 - no PoE power but supports non-PoE device
port 19 - shows no Status anywhere but PoE is active
port 20 - shows no Status anywhere but PoE is active
port 21 - shows 17
port 22 - shows 18
port 23 - shows 19
port 24 - shows 20
it seems the status is 4 off. Port 1-4 would roll around to port 22. Port 24-4 would be port 20 and so forth. Why only 4 ports show correctly is beyond me.
Other than this odd status, everything is functioning and working fine (except for the 2 ports with no PoE power). Is there any chance the PoE firmware is scrambled and can be reloaded? Is there any Cli commands to reset all status and hopefully realign the correct status? This is a test device for my research so I can survive with the odd quark.I was wondering if anyone else has run across this peculiar activity.
You can see in the picture that port 7 is linked. The camera is plugged into port 23 but the PoE status led is showing port 19. The web interface shows the same as the visual observance.
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11-01-2021 02:20 PM
An Update to problem. I found chip U8 was damaged. Purchased new PD69208M chip and replaced U8 with an OEM Microsemi 56QFN. All my problems disappeared and the status is correct and all ports are powered.
The system must poll the chips by series and not by location. since the chip was damaged, it through the series off by certain factor. Love the switch and its capabilities.
. New chip, correct status.
11-01-2021 02:20 PM
An Update to problem. I found chip U8 was damaged. Purchased new PD69208M chip and replaced U8 with an OEM Microsemi 56QFN. All my problems disappeared and the status is correct and all ports are powered.
The system must poll the chips by series and not by location. since the chip was damaged, it through the series off by certain factor. Love the switch and its capabilities.
. New chip, correct status.
11-02-2021 03:25 AM
Hi,
You had to contact STAC to RMA the switch and not deal with this hardware intervention. The switch comes with Cisco LLW which in your case is applicable and your device is covered.
Thanks
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