Controlling routing at the physical network layer embeds policy into topology.
在物理网络层控制路由需要将策略嵌入到拓扑中。
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。
When devices are emulated, such as virtual network adapters, the emulation provides a layer to abstract away the physical hardware.
当设备被模拟(比如虚拟网络适配器)时，模拟提供一个抽象层以抽象物理硬件。
Peer-to-peer systems are often implemented as an abstract overlay network built at the application layer on top of the native or physical network.
对等系统常常实现为一个抽象的覆盖网络，构建于原生或物理网络之上的应用程序层上。
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。
The two bottom layers, called the physical layer protocols, take care of the actual signal transfer over the network cable.
称为物理层协议的两个底层处理网络电缆上的实际信号传输。
Infrastructure Layer - physical hardware, network and operating systems.
基础架构层——物理硬件、网络和操作系统。
Likewise, if all communication at the physical layer was lost, HA would continue to think the network was OK, as it is still able to route traffic across the virtual LAN on the Hypervisor.
同样，如果物理层的所有通信中断了，HA仍然会认为网络是正常的，因为它仍然能够通过Hypervisor上的虚拟lan路由通信流。
Each layer employs the services of the layer underneath, which enables a top layer protocol to transmit messages over the physical network.
每个层都使用下面一层的服务，这使得顶层协议能够在物理网络上传输消息。
Architects, however, need to understand the physical layer in order to avoid network bottlenecks and security exposures.
但是，架构师需要了解物理层以避免网络瓶颈和安全暴露。
Cloud computing is made up of a variety of layered elements, starting at the most basic physical layer of storage and server infrastructure and working up through the application and network layers.
云计算是由多种分层的要素组成，从最基本的物理层存储和服务器基础架构开始，以及应用层和网络层。
With routing defined in a logical layer above the physical network, it is possible to have many overlapping topologies implemented on the same network fabric.
通过在物理层之上的逻辑层中定义路由，可以在相同网络结构上实现许多重叠的拓扑。
This article introduces an Advanced Physical Layer technology to the data return path over cable network.
介绍了一种利用有线电视网络进行数据通信的回传通道的高级物理层技术。
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。
The system employs a Fast Ethernet Physical Layer Chip and EMAC embedded in MCU to support network transmission.
使用物理层网络控制芯片配合微控制器片内集成的EMAC以太网控制器，提供对网络传输的支持。
A synchronous network backup system (SNB) is presented, and it implement synchronous backup in physical layer.
本文提出了同步网络备份系统(SNB)，其属于物理层次的同步备份。
For super capacitor of physical characteristics, there are three model of the Electric Double Layer capacitor that series RC model, nonlinear RC network model and the linear RC network model.
针对超级电容器的物理特性，提出了双电层电容器的三种等效模型，即串联rc模型，非线性RC网络模型和线性RC网络模型。
So, it is necessary to study key technologies of physical layer of optical network.
因此有必要对光网络物理底层关键技术进行研究。
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。
Wireless RF injection through physical layer is the basis for higher layer network countermeasure.
通过物理层进行无线射频注入是实现更高层次网络对抗的基础。
It is based on the shortest queue length of nodes and designed by crossing network layer, MAC layer and physical layer.
该算法通过节点最短队列长度，把网络层、MAC层和物理层协同起来。
The unreliability of wireless links and the broadcast property of physical layer provide a good platform for the application of network coding in wireless networks.
无线链路的不可靠性和物理层广播特性非常适合采用编码，为网络编码的应用提供了一个良好的平台。
Application layer research is mainly focused on protection against attacks and virus, and managing to realize the combination of application layer, network layer and physical layer.
应用层安全主要研究对攻击、病毒的防护，并设法实现应用层、网络层以及物理层结合的溯源。
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。
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。
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。
Joining a engineering, this paper gives the high speed and low consuming circuit of network communication based on the microprocessor of S3C4510B, it takes DM9161 as a physical layer interface.
文章结合工程实例，基于S3C 4510 B微处理器构建了以DM 9161为以太网物理层接口的低功耗、高速硬件电路。
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。
Because all kinds of equipments in Ethernet must be though the physical layer interface devices can connected with network transmission media, thus this part mainly introduces the physic...
由于以太网中的各种设备必需通物理层接口器件才能与网络传输介质相连，因此本部分主要介绍物理层器件。
Because all kinds of equipments in Ethernet must be though the physical layer interface devices can connected with network transmission media, thus this part mainly introduces the physic...
由于以太网中的各种设备必需通物理层接口器件才能与网络传输介质相连，因此本部分主要介绍物理层器件。
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