%SFF8472-3-THRESHOLD_VIOLATION: Twe2/0/2: Rx power low warning

broow · ‎06-07-2021

I have noticed these errors on both Cat9500 we have upgraded from cat9k_iosxe.16.11.01.SPA.bin to a new IOS.

Any ideas? did not have these errors before.

Switching, LAN Switching

Mohsin Alam · ‎06-07-2021

Try cleaning or replacing the fiber as the SFP is having low RX ( receive ) power.

You can share the output of show int tw2/0/2 trans de

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marce1000 · ‎06-07-2021

>...we have upgraded from cat9k_iosxe.16.11.01.SPA.bin to a new IOS

If not seen before , usually then it's a software bug.

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

_a_techie_ · ‎06-07-2021

Hello @broow ,

Is it just a single switchport that complains about RX power? If so, try replacing the cable and see if that makes a difference.

If you are getting the same alert for multiple switchport, then it would be a software bug like @marce1000 pointed out.