| 释义 |
high layer functions 高层功能 Functions in layers 4 to 7 of the open systems interconnection (OSI) protocol reference model. They usually relate to information storage, processing or message facilities. Capabilities necessary to support these functions are normally provided within the user terminals, but the network may contain the physical entities necessary to provide the functions. 开放系统互连(OSI)协议参考模型的第4到第7层中的功能。它们通常与信息存储、信息处理或报文处理 相关。支持这些功能所需的能力通常在用户终端内提供,但网络可能包括提供这些功能 所需的物理实体。 |