This Recommendation | International Standard provides the specification of management information within an Open System related to those operations of the OSI Network Layer. Specifics on how Network layer management is accomplished is beyond the scope of this Recommendation | International Standard. Network Layer management information is defined by specifying: — the managed object class definition of Network Layer Managed Objects following guidelines put forth by the Structure of Management Information (see Recommendations X.720-X.724 and ISO/IEC 10165); — the relationship of the Managed Objects and attributes to both the operation of the layer and to other objects and attributes of the layer; and — the action type operations on the attributes of Network Layer Managed Objects that are available to OSI Systems Management. Annexes D, E, F and G, which are integral parts of this Recommendation | International Standard, provide ICS proformas associated with Network Layer management information.