
【计】 open system interconnection; OSI
开放系统互连(Open System Interconnection, OSI)是国际标准化组织(ISO)制定的网络通信参考模型,旨在通过标准化协议实现不同计算机系统的互联互通。以下是其核心要点:
层次 | 功能简述 | 典型协议/设备 |
---|---|---|
物理层 | 传输比特流,定义电气/物理特性 | 网线、集线器 |
数据链路层 | 数据帧传输与错误校验 | 交换机、MAC地址 |
网络层 | 路由选择与逻辑寻址 | IP协议、路由器 |
传输层 | 端到端连接与流量控制 | TCP、UDP |
会话层 | 建立/维护/终止会话 | NetBIOS |
表示层 | 数据格式转换与加密/压缩 | JPEG、ASCII、SSL |
应用层 | 用户接口与网络服务 | HTTP、FTP、SMTP |
如需更完整的OSI协议交互示例或技术标准细节,可参考ISO官方文档或网络通信教材。
“开放系统互连”是指能够将不同厂商、不同种类的计算机系统和设备相互连接和通信的技术及标准。它允许不同厂商、不同种类的计算机系统和设备互相通信和使用资源,从而实现信息互通和资源共享,提高计算机系统的整体性能和应用效益。
kāi fàng xì tǒng hù lián
The Open Systems Interconnection (OSI) model is a conceptual model that characterises and standardises the communication functions of a telecommunication or computing system without regard to its underlying internal structure and technology.
ˈəʊpən ˈsɪstəmz ˌɪntəˈkɒnɛkʃən
The Open Systems Interconnection (OSI) model is a widely-used networking concept that allows devices from different manufacturers to communicate with each other on the same network.
The Open Systems Interconnection (OSI) model provides a consistent and standard way for different devices and systems to communicate with each other.
By using Open Systems Interconnection (OSI) model protocols, IT professionals can ensure that devices from different manufacturers can communicate with each other effectively.
The OSI model is often compared to the TCP/IP model, as both models provide theoretical frameworks for communication in computer networks.
The opposite of Open Systems Interconnection (OSI) is a closed system, where devices and systems are not compatible with each other.
The term "Open Systems Interconnection" is a widely-used concept in the field of computer networking and is commonly used in technical discussions and documentation.
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