1.

Scope

This International Standard defines an Open Systems Interconnection (OSI) management-compatible architecture, and service and protocol elements for use in a LAN/MAN environment for the purpose of performing remote management of LAN-based or MAN-based devices. The protocol described is a connectionless-mode m anagement protocol that makes use of Logical Link Control (LLC) Type 1 procedures as a means of conveying management information between stations in a LAN/MAN environment, thus providing for interworking of ISO/IEC standard LAN/MAN devices for management purposes. The management information is conveyed using the protocol data unit (PDU) formats defined in ISO/IEC 9596-1:1991?. (?Information on references can be found in clause 2.) To this end, this International Standard

(a) Describes the services required for the transfer of manageme nt information between management processes in LAN/MAN stations. (b) Defines the protocol and PDUs for conducting management information exchanges that support the provision of those services. This protocol is defined as an (N)-layer management protocol specific to the management of layers 1 and 2 in a LAN/MAN environment. (c) Defines a convergence protocol and PDUs used for the exchange of management PDUs. (d) Describes the underlying services required for transfer of management PDUs between peer-management entities by means of the convergence protocol. (e) Defines an access control mechanism and an event report forwarding mechanism that operate in conjuction with the management protocol. (f) Defines managed object classes that relate to the operation of the management protocol and the covergence protocol.

This International Standard provides the PICS proforma for the S ystem Load Protocol in compliance with the relevant requirements, and in accordance with the relevant guidance, given in ISO/IEC 9646-2:1991.

NOTES (1) This International Standard provides only a set of management tools. The management operations that are specified by this International Standard are only meaningful in conjunction with the managed object definitions contained in the appropriate layer standards. (2) This International Standard defines an (N)-layer management protocol for the management of stations attached to ISO/IEC standard LAN or MAN subnetworks, in accordance with the terminology contained in the OSI Management Framework, ISO/IEC 7498-4:1989 and the OSI Systems Management Overview, ISO/IEC 10040:1992. The service and protocol described in this International Standard are basded upon the OSI Common Management Information Service and Protocol standards (ISO/IEC 9595:1991 and ISO/IEC 9596-1:1991), and are therefore designed to be used in conjunction with managed objects defined in accordance with the Guidelines for the definition of managed objects (ISO/IEC 10165-4:1992). As such, this International Standard is intended to be complementary to the functionality of the OSI Management standards being developed in ISO/IEC JTC1 SC21/WG4. (3) To evaluate conformance of a particular implementation, it is necessary to have a statement of which capabilities and options have been implemented for a given protocol. Such a statement is called a Protocol Implementation Conformance State ment (PICS). Annex A to this International Standard contains the PICS proforma for the LAN/MAN Management Protocol.