ISO/IEC 9314-21-2000 信息技术 光纤分布式数据接口(FDDI) 第21部分:对FDDI物理层协议一致性测试抽象测试套(FDDI PHY ATS)

标准号：ISO/IEC 9314-21-2000
中文标准名称：信息技术 光纤分布式数据接口(FDDI) 第21部分:对FDDI物理层协议一致性测试抽象测试套(FDDI PHY ATS)
英文标准名称：Information technology - Fibre Distributed Data Interface (FDDI) - Part 21: Abstract test suite for FDDI physical layer protocol conformance testing (PHY ATS)
标准类型：M33
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：M33
国际标准分类号：33.180.01;35.110
适用范围：This part of ISO/IEC 9314 defines a conformance test of the PHY functions in a path through an FDDI node. Figure 1 is a functional block diagram of an FDDI path. The path contains the necessary functions to repeat (that is decode and retransmit) frames through an FDDI node. The PHY Repeat Filter is optional when there is a MAC in the repeat path. If there is no MAC in the repeat path, then the function is implemented in PHY. This test standard makes no assumption about the presence or absence of MAC on the path and is intended to operate with or without a MAC. It tests the repeat filter function wherever it is located. However, the results of some tests may be slightly different if a MAC is present.