Last Modified: Dec 19, 2025
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
21.0.0
Opened: Dec 19, 2025 Severity: 2-Critical
- BIG-IP VE system fails to reach an operational state after cold boot. - MCPD starts but throws an error and never becomes ready. - ecmd process drives CPU utilization above 100%.
The BIG-IP VE system fails to become active after a cold boot. Configuration management and control-plane services are unavailable due to MCPD not becoming ready. High CPU utilization by ecmd can impact overall system stability and resource availability.
- cold boot (power-off followed by power-on). - BIG-IP VE systems running v21.0.0.
Manual Recovery: Delete the mcpd.bin file. Reboot the system. MCPD will regenerate a clean state and the system will return to operation.
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