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Cisco Bug: CSCuo14511 - fed and stack-mgr causing High CPU on 3850

Last Modified

Nov 17, 2020

Products (1)

  • Cisco Catalyst 3850 Series Switches

Known Affected Releases

15.0(1)EZ

Description (partial)

Symptom:
"show process cpu" reports high CPU utilization due to 'stack-mgr' process (which consumes >75%).

Conditions:
Excessive mac-address flapping
OR
Aggressive mac-aging timer configuration - <= 15 seconds
OR
Spanning-tree Topology Change Notification (TCN) due to frequent layer1/2 events and/or spanning-tree misconfiguration in the network

Related Community Discussions

Bug ID <key>CSCuo14511</key> - has it been fixed in the suggested release?
--------------------------------------------------------------------------------------------------------- customer's switch, version and image: Switch Ports Model SW Version SW Image Mode ------ ----- ----- ---------- ---------- ---- * 1 56 WS-C3850-48P 03.03.05.SE cat3k_caa-universalk9 BUNDLE --------------------------------------------------------------------------------------------------------- hello everyone, problaby my customer's system carrying the bug ID <key>CSCuo14511</key>. in the suggested release ...
Latest activity: Nov 22, 2016
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  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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