標準號：ISO/IEC 9314-21-2000
中文標準名稱：信息技術 光纖分布式數據接口(FDDI) 第21部分:對FDDI物理層協議一致性測試抽象測試套(FDDI PHY ATS)
英文標準名稱：Information technology - Fibre Distributed Data Interface (FDDI) - Part 21: Abstract test suite for FDDI physical layer protocol conformance testing (PHY ATS)
標準類型：M33
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：M33
國際標準分類號：33.180.01;35.110
適用范圍：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.