Cisco Bug: CSCum99304 - Confusing CPU Over temp error message on 3900 platforms

Last Modified

Dec 21, 2019

Products (1)

Cisco 3900 Series Integrated Services Routers

Known Affected Releases

15.2(4)M4.3

Description (partial)

Symptom:
The following message may be seen on a 3900e series router:
%ENVMON-1-CPU_CORE_WARNING_OVERTEMP: Warning: CPU core is very hot value = 10. It exceeds threshold 20. Please resolve system cooling immediately to prevent system damage

Conditions:
These messages can be seen during normal operations, but are misleading. The messages are reporting a real problem.

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