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Cisco Bug: CSCvs34851 - Continuous link flapping leading to snm_log corefile

Last Modified

May 17, 2020

Products (1)

  • Cisco Firepower 9300 Series

Known Affected Releases

2.6(1.157)

Description (partial)

Symptom:
Seeing an interface in FPR has been linked flapping lots of times. 

2019-10-Exit.-10-19 15:06:02.046526][snm.e'wdle_fwim_fp_install:1583][0th]:[1]: New FP state 2 type 1, count 1..h1/2 ing_classid0[snm_handle_l2_protocol_state_change] [Eth1/2]: 'DOWN' -> 'UP'. rule 1, count 1,FP MAC 00.00.00, status 0, action 0...a0, snm_if_event_running 1..nable 1...

Due to the number of events generated and the lack of memory for SNM process, the system crashes and generates a core for snm.

----- reset reason for Supervisor-module 1 (from Supervisor in slot 1) ---
1) 
    Reason: Reset triggered due to HA policy of Reset
    Service: snm hap reset

Conditions:
The issue has seen in SSP devices.
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