信息技术 系统间远程通信和信息交换 为支持转发ISO 8473PDU在中间系统之间交换域内路由选择信息的协议

[中文适用范围]： 指定边界中间系统使用的协议来获取和维护信息，以便在不同路由域之间路由 NPDU。 规定了 BIS 之间交换域间可达性和路径信息的程序、维护 BIS 内域间路由信息库的程序、用于在 BIS 之间分发域间路由信息的协议数据单元的编码、声称符合本标准的实现的功能要求。 所描述的协议在各个路由域的级别上运行。 不包括管理域的建立。 [外文原描述]： Specifies a protocol to be used by boundary intermediate systems to acquire and maintain information for the purpose of routeing NPDUs between different routeing domains. Lays down the procedures for the exchange of inter-domain reachability and path information between BISs, the procedures for maintaining inter-domain routeing information bases within a BIS, the encoding of protocol data units used to distribute inter-domain routeing information between BISs, the functional requirements for implementations that claim conformance to this standard. The protocol described operates at the level of individual routeing domains. Does not cover the establishment of administrative domains.