ONORM ENV 41801-7-1993 信息系统互联．无连接式网络服务用继电器．用于永久性存取范围内虚拟呼叫的PSDN子网络相关介质的相关要求

标准号：ONORM ENV 41801-7-1993
中文标准名称：信息系统互联．无连接式网络服务用继电器．用于永久性存取范围内虚拟呼叫的PSDN子网络相关介质的相关要求
英文标准名称：Information systems interconnection - Relaying the connectionless-mode network service - PSDN subnetwork dependent media dependent requirements for virtual calls over a permanent access
发布日期：1993/1/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This Functional Standard is applicable to interworking units concerned with operating in the Open Systems Interconnection (OSD environment. It specifies a combination of OSI base standards that collectively provide a Network-relay function for the Connectionless-mode Network Service.This part of the Functional Standard specifies subnetwork-type dependent media dependent requirements applicable to an interworking unit using virtual calls over a permanent access to a PSDN. The operation of an interworking unit may involve relaying from one subnetwork to another, and those subnetworks need not be of the same type. This part of the Functional Standard applies only to communications using PSDN subnetworks with permanent access on which virtual calls are used.