分组交换网

Internet是一个建立在TCP/IP协议基础上的开放的分组交换网，由于其在最初设计时缺乏安全考虑，导致目前Internet的安全性能严重不足。

Internet is an open packet switching network built on TCP / IP protocol . The lack of security considerations when it was designed have led to the current Internet security seriously inadequate .

分组交换网（PSN）是电信网络发展的方向。

The packet switching network ( PSN ) is a direction of network development of telecommunications .

IP语音通信是指将语音数据包压缩之后，利用IP协议通过分组交换网传输。

IP voice communication is a technology that transmitting the data through the packet-switched network after data compression .

在分组交换网中实现QoS保证是近年来网络研究的热点。

Providing QoS guarantee in packet-switching network has been a key issue these years .

对于远程测试多媒体网络的需求进行了详尽的分析，提出了一种利用IP分组交换网建立虚拟专用网络的网络模型。

After a detailed analysis of multi-media network on remote satellite tests , a virtual special multi-media network model using IP exchange nets was proposed .

利用分组交换网组建金融POS网

To Employing The Packet Switch Network Establish Financial POS Network

分组交换网是当今全球通信基础设施的重要部分，IP网络终将与其他网络相互融合，演化成为新一代网络技术。

The packet-switched networks are an important part of today 's global communication infrastructure . IP network with other network technology will become the new generation network .

323协议是ITU-T制定的基于分组交换网的多媒体通信系统标准，它是一个框架协议，与之配套使用的还有H。

323 protocol , Packet-based multimedia communications systems , was mapped out by ITU-T.

研究了K－NET局域网经X.25公用分组交换网实现互连的有关技术。

An investigation in the K & NET interconnection technique through the X. 25 PSPDN ( packet switching public data network ) is conducted .

下一代分组交换网的SDL协议

SDL Protocol for Next Generation Packet Network

简单数据链路协议（SDL）作为一种新型的IPoverFiber技术，其简单性和低开销更能适应高速传输链路的要求，并提供下一代光分组交换网所需要的操作维护管理功能；

As a new technology of IP over Fiber , SDL ( Simple Data Link ) is particularly suitable for high speed transport links because of its low implementation complexity .

该系统在H.323协议的支撑下，已很好实现基于IP分组交换网的远程多媒体会议系统的交互通信。

Under the support of H.323 protocol , this system has already been easy to realize long-range multimedia mutual communication based on IP packet exchanging network , meeting of system .

因此，OBS网络的突发丢失率相对于电域分组交换网要高很多，为了降低突发丢失率提高信道的利用率，研究和设计高效的调度算法是OBS领域研究的重点和热点。

Comparing with circuit packet switching , the loss rate of burst in OBS networks is much higher because of absense of mature optical buffer components .

3G-324M协议在高速分组交换网的应用

Application of 3G - 324M in High Speed Packet Switched Networks

随着以太网技术发展，分组交换网中两个传输节点间的数据带宽如今已经达到1Gbit/s，并且该网络需要对传统TDM业务支持。

The data bandwidth in Packet Transport Network ( PTN ) between two nodes has been up to1Gbit / s , and the support to traditional TDM services is indispensable .

互联网发展的初期，是提供尽力而为服务的分组交换网网络，它主要支持FTP协议、E-mail、HTTP等相对传统的数据业务，这些业务对网络时延等性能要求不高。

Internet is a packet switched network which provided Best-effort service at the beginning . It supports the FTP protocol , E-mail , HTTP , etc. These traditional data services do not ask for higher performance of the network delay .

ISDN是通过网络互联，使用户与分组交换网中分组终端及电话网中的电话用户相连。

ISDN ( intergrated services digital nework ) is through network architecture . Connect to the user of internet , the packet terminator of packet switching net and the private branch of telephone net .

湖北省已开通运行的数据及多媒体通信网有：分组交换网、数字数据网、CHINANET及中国公众多媒体通信网等。

The data and multimedia communication networks in service in Hubei province includes PSPDN , DDN , CHINANET and the public multimedia network .

320系统还是基于分组交换网的H.323系统，都存在资源利用率不高、设计复杂、难以扩展等缺点。

At present , the multi-media conference system including H.320 system based on switch circuit network and H.323 system based on packet based network has the disadvantage of low using rate of resource , complex of designing , difficult to extending .

SIP协议是多媒体通信网的控制协议，在分组交换网中，它提供基本的呼叫控制，负责建立、修改和终止多媒体（话音、数据、视频等）会话等应用。

The session initiation protocol ( SIP ) is the multi-media network control protocol , designed to provide basic call control and to establish , modify and terminate multimedia ( voice , data , video and so on ) sessions and so on , in a packet-switched network .

传统E-Model模型没有考虑到分组交换网中丢包、抖动等问题，人们对其进行了相关改进。

The traditional E-Model has not put packet loss and delay jitter and other problems from packet switching network into consideration , and is modified by researchers .

系统描述了全国地震通信网络系统构成和拓扑结构，简要介绍了在项目建设中遇到的一些关键技术问题，主要包括：分组交换网（X.25）和路由器在联网中的应用；

Through describing the form and topological structure of the national earthquake communication network system , this paper briefly introduces some key technological issues in project construction , mainly including application of Packet Switching Network ( X.25 ) and Router in network connections ;

任意拓扑结构战术地域分组交换网的性能分析

Performance Analysis on Tactical Local Packet Switching Networks with Arbitrary Topology

分组交换网中多类信息全局流量控制性能分析

The Performance Analysis for Global Flow Control of Multiclasses in Packet-Switching Networks

主动网络&可编程的高性能分组交换网

Active network & a programmable high performance packet switch network

分组交换网中两路合用系统的性能分析

Performance Analysis of a Two-Link Striping System in Packet-Switched Networks

江西省公用分组交换网（JXPAC）及其业务应用

The Public Packet Switching Network of Jiangxi and Its Applications in Service

光分组交换网边缘节点关键技术的研究

Studies on Key Technologies to Enable Edge Nodes in Optical Packet-Switched Networks

分组交换网的服务质量及实现

The QOS of the Packet Switching Networks and Its Realizing

可用于光分组交换网的一种新型2×1节点接收机

New 2 × 1 Node Receiver Architecture for Optical Packet Switched Networks