This Recommendation | International Standard provides the specification of management information within an Open System related to those operations of the OSI Transport Layer specified by ITU-T Recommendations and ISO/IEC International Standards. Specifics on how Transport Layer management is accomplished is beyond the scope of this Recommendation | International Standard. Transport Layer management information is defined by specifying: — the managed object class definition of Transport Layer Managed Objects following guidelines put forth by the Structure of Management Information (ITU-T 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 Transport 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 Transport Layer management information.