The various network device drivers run at the interface layer, which receives and transmits data from and to the physical link.
各种网络设备驱动程序在接口层运行，该层从物理链路接收数据，并向物理链路传输数据。
Above the link layer is the network layer, which is responsible for directing packets to their destinations.
链路层上面是网络层，它负责将报文定向到目标位置。
Each layer USES the layers beneath it, so the network layer does not need to worry about how each hop on the network USES the physical and data link layers and so forth.
每一层都使用它下面的层，因此网络层不必担心网络上的每次跳转如何使用物理和数据链接等问题。
Technically, network switches operate at layer two (Data Link Layer) of the OSI model.
从技术上讲，网络交换机工作在OSI模型的第二层（数据链路层）。
The Link Layer is the networking scope of the local network connection to which a host is attached.
链路层是指本地网络到每一台被连接主机的网络范围。
Technical regulation of CAN Bus network is lucubrated and Data Link Layer and Physical Layer in hierarchy structure of CAN Bus is described.
研究了CAN网络协议的技术规范，描述了CAN总线的分层结构中的数据链路层和物理层。
Using traditional transmission power control mechanism in data link layer of wireless AD hoc network may result in the increased packet collisions among nodes which use different transmission power.
在无线自组织网数据链路层中，采用传统的功率控制机制会引起不同发射功率节点间的分组冲突。
Then the data link layer and network layer design schemes of several typical systems are described in detail.
分类阐述了几种典型的数据链路层和网络层的设计方案和设计思想。
Network topology discovery is composed of network layer topology discovery and link layer topology discovery.
单级网络拓扑发现包括网络层拓扑发现和链路层拓扑发现两个方面。
The link layer inspection method removes the latency of movement detection and the method of link layer handoff prediction can trigger network layer handoff before link layer handoff.
链路层监测触发方法省去了切换中移动检测时间，预测链路层切换方法将网络层切换提前于链路层切换进行。
In network layer link bandwidth and available bandwidth capture the relevant properties of network path, which is baseline of performance management and QoS control.
网络层的链路带宽与有效带宽直接反映了端到端路径的基本状况，是对网络进行性能管理和服务质量控制的基础。
The thesis chooses the four-layers structure as the rudiment of our protocol stack system, which includes physical layer, data link layer, network layer and application layer.
本文选择了四层结构作为协议栈体系结构的雏形，即：物理层、数据链路层、网络层、应用层。
In wireless network, a logical link control (LLC) layer is necessary to mitigate the effect of radio channel error before cells are released to the ATM network layer.
无线at M网络中，在信元进入AT M网络层前，须通过逻辑链路控制(llc)层来消除无线信道的影响。
But the intrinsic error exists in PP model for the effect of the data link layer and physical layer, and the incorrect result is obtained by filter algorithm when the network load is heavy.
由于受数据链路层和物理层的影响，PP测量模型本身存在着固有的测量误差；当网络负载较重时，PP测量模型就不能够通过过滤算法得出正确的测量结果。
The shield twisted-pair was used to link with PROFIBUS field bus network layer.
PROFIBUS现场总线网络层采用屏蔽双绞线连接。
The Secure Ether Network Card, which is a sort of safety, integrates the data encryption technology into the network card and provides the encryption and the authentication services to the link layer.
保密以太网卡是将数据加密技术集成到网卡上，对链路层数据提供加密和认证服务的安全设备。
In particular, it focuses on the fault and performance management of the data link and network layer of ISDN D-channels.
特别是它着重在ISDN D通路的数据链路和网络层的故障和性能管理。
User processes includes link scan task, layer 3 unicast task, layer 3 multicast task, management interface and network protocols.
用户进程主要包括链路状态扫描任务、三层单播任务、三层组播任务、管理界面和网络协议。
The structure of physical layer, link layer and application layer was applied in field-bus of network control, data was gained through cyclic query of principal and subordinate PC in link layer.
控制网络现场总线采用物理层、链路层和应用层结构。链路层以主从循环查询获取数据。
Third, realized are the functions of the data link layer, network layer and the application of wireless temperature sensor network.
第三，设计并实现无线温度传感器网络的数据链路层、网络层和应用层的功能。
According to the models of the link length and visibility for multiple satellite constellations, the multi-layer mathematic model of the satellite network was built in this paper.
根据多层卫星星座网络的链路长度与可见性模型，建立了多层卫星网络的数学模型，并据此提出了一种适于多层卫星网络应用的层次路由协议。
The difference of topology discovery between the network layer and the data link layer is described and the development and defect of the data link layer are analyzed.
阐述了网络层拓扑发现与数据链路层拓扑发现之间的区别，分析了数据链路层拓扑发现的研究现状和存在的不足。
These connect networks at the link layer, while routers connect networks at the network layer.
应用层详细参与应用而不参与数据在网络中的运动。
This paper mainly discussed the technology of frequency management of communication network based on the physical layer and the data link layer.
本文主要研究了基于该协议物理层和数据链路层的通信网频率管理技术。
OSI/RM classify the structure of the network into application layer, presentation layer, session layer, transport layer, network layer, data link layer and physical layer.
OSI/RM将计算机网络将网体系结构划分为应用层、表示层、会话层、传输层、网络层、数据链路层和 物理层七个层次。
OSI/RM classify the structure of the network into application layer, presentation layer, session layer, transport layer, network layer, data link layer and physical layer.
OSI/RM将计算机网络将网体系结构划分为应用层、表示层、会话层、传输层、网络层、数据链路层和 物理层七个层次。
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