open_systems_interconnection_model

1.Routing is a function associated with the network layer (layer 3) in the standard model of network programming, the Open Systems Interconnection (OSI) model.
在开放系统互连osi模型中，路由是网络层(第三层)的功能。
dict.yoduao.com
2.Figure 1 shows the Open Systems Interconnection (OSI) model, which is used to explain the interactions between network protocols.
图1展示了Open Systems Interconnection (osi)模型，该模型用于解释网络协议之间的交互。
dict.yoduao.com
3.Like ISDN and DSL, HSSI operates at the physical layer of a network, using the standard Open Systems Interconnection (OSI) model.
像ISDN和dsl, HSSI运营网络的物理层，使用标准的开放系统互连(osi)模型。
dict.yoduao.com