This read-write INTEGER specifies the action taken when the rising threshold is crossed, with values tcaTrap(1) to send an SNMP trap, tcaLog(2) to record a local log entry, or tcaIgnore(3) to take no action. An admin configures this to control how they get notified when the monitored variable rises above its threshold, choosing between an active alert and passive logging. As an illustrative example, an admin might set this to tcaTrap(1) so a rising error rate immediately notifies the NMS via a trap.