Status filter rules can be a critical method of tuning performance and eliminating unneeded information.
Rules are set in a top-down ranking, meaning that rules listed at the top of the list are processed first, followed by those listed next. This assumes that a higher-level listing does not stop processing of lower-priority rules. Think of status filter rules as a series of gates that each status message must pass through. Each gate has a set of criteria against which each message is checked.
• If the message does not match the criteria, it passes through the gate to the next rule.
• If it matches, a set of actions can be taken, including either allowing the message to continue on its path, or stopping all further activity ...