CPU Overload Protection

CPU overload protection on the Oracle Communications Unified Session Manager is system-oriented in terms of defining the percent utilization that triggers an action. Actions are application-specific.

For the Oracle Communications Unified Session Manager application, if the CPU usage exceeds the configured setting, the system sends a 5xx error in response to any initial dialog request or standalone transactions. The Oracle Communications Unified Session Manager continues to accept registration refreshes and new transactions within a dialog.

Note:

An Oracle CSM configured to operation as an SLRM rejects all messages when CPU utilization exceeds this threshold.

By default the CPU utilization rate is 80%. This value can be changed by the following ACLI command sequence.

ORACLE# configure terminal
ORACLE(configure)# session-router
ORACLE(session-router)# sip-config
ORACLE(sip-config)# options +load-limit=”70”
ORACLE(sip-config)# done