This Recommendation International Standard defines a Systems Management Function which may be used by an application process in a centralized or decentralized management environment to interact for the purpose of systems management, as defined by CCITT Rec. X.700 ISO/IEC 7498-4. This CCITT Recommendation International Standard defines the Log Control function and consists of services and two functional units. This function is positioned in the application layer of the CCITT Rec. X.200 ISO/IEC 7498-1 and is defined according to the model provided by ISO/IEC 9545. The role of systems management functions is described by CCITT Rec. X.701 ISO/IEC 10040.This CCITT Recommendation International Standard- establishes user requirements for the Log Control function;- establishes models that relate the services provided by the function to user requirements; - defines the services provided by the function; - specifies the protocol that is necessary in order to provide the services; - defines the relationship between the services and SMI operations and notifications; - defines relationships with other systems management functions; - specifies conformance requirements.This CCITT Recommendation International Standard does not- define the nature of any implementation intended to provide the Log Control function;- specify the manner in which management is accomplished by the user of the Log Control function;- define the nature of any interactions which result in the use of the Log Control function;- specify the services necessary for the establishment, normal and abnormal release of a management association;- specify the authorization requirements for the use of the Log Control function or for any associated activity;- define the definitions of managed objects related to the management of particular protocol machines.