CPU Load Limiting

The transmission of IDS-related system alarms and SNMP traps is disabled when the CPU utilization rate surpasses a configured threshold percentage, reducing system resource utilization. When the threshold is exceeded, a syslog message (MINOR level) announces the termination of IDS reporting. No additional syslog messages or SNMP traps are generated until the CPU utilization rate falls below the configured threshold. The resumption of IDS reporting is announced by another syslog message, also issued at the MINOR level.

The system manages percent CPU utilization as follows:

• Begins rejecting SIP requests when the CPU reaches its throttling threshold, and
• Rejects all SIP requests, as well as stops sending IDS-related system alarms and SNMP traps, when the CPU reaches its maximum.

See the SMP-Aware Task Load Limiting section in the Oracle® Communications Session Border Controller Maintenance and Troubleshooting Guide for information on how this works and how the user can configure the CPU throttling threshold and maximum CPU utilization.