CAN/CSA-Z243.135.1-91(R1999)

This National Standard of Canada is equivalent to International Standard ISO/IEC 8880-1:1990. 1 Scope This part of ISO/IEC 8880 specifies the protocol combinations to be used to support the OSI Network Service defined in ISO 8348 and its Addendum 1. The field of application of this part of ISO/IEC 8880 is that of the environments defined in the other parts of ISO/IEC 8880. The field of application may be extended by the incorporation of a new environment as specified herein. This part of ISO/IEC 8880 a) provides a general introduction; b) refers to those International Standards which define the architectural principles governing the provision of the Network Service; c) defines terms which may be used in specifying the environments in which protocol combinations operate; d) specifies principles and a framework for describing the support of the OSi Network Service; e) defines the conformance principles to be followed in the other parts of ISO/IEC 8880 which specify the requirements for equipment claiming conformance to ISO/IEC 8880; f) considers the rationale for the inclusion of protocol combinations in the other parts of ISO/IEC 8880 and the subsequent addition of protocol combinations to those parts; and g) specifies the format and content of the other parts ISO/IEC 8880 and subsequent additions to those parts. Where an environment does not support the OSI Network Service of the appropriate mode, it lies outside the field of application of ISO/IEC 8880.