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help with a 4500 log message???

baselzind
Level 6
Level 6

‎05-24-2017 09:51 PM - edited ‎03-08-2019 10:43 AM

i have a ws-c4500x-16 switch at a customer that is giving this log message:

THRESHOLD_VIOLATION: Te1/1/3: Rx power low warning; Operating value: -21.0 dBm, Threshold value: -19.0 dBm.

please what does it mean? and how do i fix it?

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2 Replies 2

brdewal2
Cisco Employee
Cisco Employee

‎05-24-2017 10:45 PM

If that port isn't actually connected then you probably have nothing to worry about and might be hitting this bug: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCtk97309

If that port is connected, you likely have a L1 issue of either bad cable or SFP.

Pete Bauer
Level 1
Level 1

‎06-01-2017 10:48 AM

Aftermarket SFP?

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