packet based network 中文意思是什麼
packet based network
解釋
分組網路-
As a whole the system may compart three modules : ndis drivers in the kernel mode, the dll program in the user mode and the user application program, adopting the share memory technology three modules realize the data share of the control canal rule, the encapsulation data and the network neiborhood name and so on, so we can easily finis1 " the packet authentication by the control canal rule, improve the filtering efficiency of the system. whereas the current of firewall technology, the system has wide utily value and business value. this software is based on windows 2000 operating system, the programming language is chosen as visual c + + 6. 0 and win2000 ddk
從總體上可以劃分為以下三個模塊：核心層的ndis網路驅動程序、應用層的動態鏈接庫程序以及用戶應用程序，這三個模塊之間通過內存共享技術完成對控管規則、封裝數據、網上鄰居名字列表等數據的讀寫操作，從而很方便的根據控管規則實現了對網路封包的認證操作，提高了系統的過濾效率。鑒于目前防火墻技術的發展趨勢，本系統具有廣泛的實用價值和商業價值，因此具有一定的推廣前景。軟體的開發基於windows2000操作系統，開發語言採用visualc + + 6 . 0和win2000ddk 。 -
Then, the paper present a protocol misusage ids in application layer based on markov chain, and obtain the following results after test : the system can have good effection on detecting the probe packet, dos attack and novelty attack. the system can overcome part of disadvantages in traditional intrusion detection system, and adapt requirements with different network. the experiment shows that the system can improve the detection accuracy rate, reduce the false negatives probability
通過對檢測系統的測試分析，系統對掃描探測報文、 dos攻擊報文和新的攻擊報文等有較好的檢測率。基於馬爾可夫鏈建立的網路異常檢測系統可以克服傳統入侵檢測系統的部分缺陷，能夠適應不同網路環境的要求，同時也有效提高了系統的檢測能力和檢測效率，降低了誤報率。 -
A simple, robust method is proposed that relies on high - resolution measurements and on - line analysis of network traffic to provide real - time alarms in the incipient phase of network anomalies. the anomaly identification algorithms based on behavior model using path changes, flow shift and packet delay variance
通過高性能測量和在線分析網路流和路由信息對初始網路異常產生實時報警，提出基於路由變化、流變化和包延遲建立網路行為模型的網路異常檢測演算法。 -
Based on the above - mentioned situation, it is therefore suggested that the fixed telecom network company will focus on how to add voice service on ip man, and to increase value added service, i. e. to develop the pure sip packet voice on the broadband man, and to boundle instant messageand user presence business ; to promote mgcph. 248 mode and sip mode on the newly established community using broadband lan access ; the big media gateway in the soft switching will mainly suitable for the broadband ip man voice service and pstn interconnection
根據以上情況的分析，建議固定網路電信公司將發展的重點放在如何在寬帶ip城域網上增加話音業務，提高增值收入方面。即在寬帶城域網上發展純sip分組話音方式，綁定即時消息和用戶狀態（ presence ）業務;在新建寬帶lan接入小區推廣mgcph . 248話機和sip話機方式；軟交換中大媒體網關方式主要用作寬帶ip城域網上話音業務與pstn互通方面。 -
Secondly, the paper describe the principle of atm network, and the function of ' sar " ( segmentation and reassembly ) and the format of packet aal5, and introduce the basic idea of ipoa, and the design project and implementing of the control chip. later, the paper introduce the logic function and operational principle of packet buffer control chip and prove the feasibity and correctness of the arithmetic. at last the paper introduce crc - 32 arithmetic based on look up and implement it with hardware
接著詳細論述了核心路由器atm網路實現的原理，包括「 sar 」 （ segmentationandreassembly ）功能和aal5報文的格式， ipoa基本思想，以及控制晶元的設計方案和實現途徑等。然後又論述報文緩存區控制晶元的工作原理和邏輯功能等，並對演算法的可行性，正確性等進行論證。最後介紹了一種基於查表的crc - 32演算法的原理及其硬體實現。 -
The basic thought of the csapfba algorithm is : the edge routers perform the state management per flow, and the edge routers differentiate between the marked flows and the non - marked flows, and the edge routers insert the relevant information into the packet header by using dynamic packet state ; the core routers divide the output link bandwidth into two parts in the light of the state information of the packet header by using class - based queueing, and the core routers allocate proportionally the bandwidth to the marked flows according to their service profiles and the current network load, and the core routers allocate the bandwidth to the non - marked flows according to the principle of max - min fairness, and the csapfba algorithm can adaptively dynamically adjust the bandwidth allocation between the marked flows and the non - marked flows
本文在csfq演算法的基礎上，提出了一種核心無狀態的自適應的成比例公平帶寬分配csapfba （ core - statelessadaptiveproportionalfairbandwidthallocation ）演算法。 csapfba演算法的基本思想是：在邊界路由器完成基於每個流的狀態處理，將所有的流分成標記流和非標記流兩種類型，採用dps技術將有關信息編碼進分組頭；在核心路由器根據分組頭中攜帶的狀態信息採用cbq策略，將輸出鏈路帶寬分成兩部分，對標記流根據當前的網路負荷按照服務規格成比例地分配帶寬，對非標記流按照最大最小公平性原則分配帶寬，並且能自適應地動態調整帶寬分配的比例。 -
While network - based intrusion detection systems usually detect packet headers or part of those headers, this system examines the packet payload as well as headers. not only the attributes are detected respectively, but also the relationships of attributes occurrence are detected according to a set of conditional rules, which is generated automatically by a machine learning algorithm
常見的基於網路的入侵檢測系統一般只對網路數據包的包頭或包頭中的某些內容進行考察，而本文實現的原型系統不僅考察數據包的包頭，而且還考察數據包應用負載的部分內容。 -
Analysis of fiber four - wave mixing in metropolitan area network based on packet over wdm technology
光包交換城域網中光纖四波混頻效應分析 -
Thus we need technology that can not only construct new packet - based networks, but can realize the inosculation of the traditional telephony network and the new networks
這時候需要這樣的技術：既能構建新的分組網路，同時也能用來實現傳統電話網和新網路的融合。 -
The inosculation of traditional telephony network based on circuit - switch ( scn ) and ip network based on packet - switch ( psn ) unfurls a huge developing space to us
傳統的基於電路交換的電話網路（ sen ）與基於包交換的ip網路（ psn ）的融合，給人們展示了一個巨大的發展空間。 -
Attempting to use eapol in a shared medium environment that does not support the use of secure associations renders port - based network access control highly vulnerable to attack ; for example, station a can mount a successful denial - of - service attack on station b simply by issuing an eapol - logoff packet using station b s individual mac address. " see ieee 802. 1x specifications, page 21, section 7. 9, lines 34 - 39, available to link to in the
在不支持使用安全關聯的共享媒體環境中進行使用eapol的嘗試會導致基於埠的網路訪問控制極易受到攻擊；例如，工作站a只要發出一個使用工作站b的個體mac地址的eapol - logoff包，就能夠在工作站b上掛裝一個成功的拒絕服務攻擊。 」 -
Firstly, this paper deals with two topology exchanging protocols and algorithms for packet radio network, which are based on the troditional link status algorithm and have some changes. secondly, a routing algorithm is presented in this paper, which applys to caculating the best route for unicast and multicast transmission under different routing modes. finally, the paper shows some problems and solvements for network management, and some unsolved problems of this system are also discussed
首先，本文討論了兩種是在傳統的鏈路狀態法基礎上作了改進而得到的拓撲交換協議與演算法：其次，提出了一種路由演算法，該演算法可用於在多種路由方式下完成單播、多播傳送的最佳路由的計算；最後，討論了網路管理中存在的一些問題和解決方案，並對系統有待解決的問題進行了討論。 -
According to my reference, there are many schemes for the personal firewall technology and each has its own advantages and disadvantages. a new double filtering packet based on kernel and user mode scheme is presented in this paper with the development of the personal firewall technology : in the kernel mode, we develop the network driver program to implement the raw net packet capturing through the ndis hook technology, and also we accomplish the net packet filtering according to the control canal rules, in the user mode, we develop the dll program to implement the services based on socket capturing and filtering through the winsock2 spi technology, thereby we overcome the shortcoming during caputuring packet by kernel mode or user mode only, greatly improve the system security nature
通過參考目前市場上多種個人防火墻的設計方案，並且分析比較各個設計方案的優缺點，結合目前個人防火墻技術的發展趨勢，提出一種基於內核態和用戶態雙重過濾的設計方案：在內核態採用ndishook技術開發ndis網路驅動程序實現對通過網路的原始數據封包截獲，並且通過訪問控管規則完成對數據封包的過濾；在應用態採用winsock2spi技術開發動態鏈接庫（ dll ）程序實現了對基於socket網路連接通信的服務截獲和過濾，從而克服了單方面從用戶態或核心態截獲數據包的缺點，極大提高了系統的安全性能。 -
Based on this technology of reconstruction, we analyzed the transmit characteristic of atm and packet switching network, then project of layer coding in sender and format of video stream is proposed respectively. at the receiver, the method of lost information reconstruction was proposed for the problem of packet or cell lost in transmission
以接收端丟失信息重建技術為基礎，本文對atm網與分組交換網的傳輸特性進行了分析，針對atm網中vbr業務與分組交換網分別設計了相應的信源端分層編碼方案以及視頻流組織方案，同時在接收端對于分組與信元的丟失問題，提出了相應的丟失信息重建方案。 -
Also both softswitch system structure and 3g communication system are based on ip - based packet - switch, signaling gateway as a important part in softswitch network, play a role of transfering ss7 signal message from ss7 signaling network to ip - based packet - switch network. firstly this paper introduce the development of telecom network and signaling transfer, and discussing the four layer structure of softswitch network ; based on this, educing the background of signaling gateway in next - generation - network ; also describes the ss7 signalling gateway structure, function and characteristic and protocol module ; then analyse the high availability implementation of signalling gateway
本文首先從電信網路和信令傳輸發展出發，介紹了下一代網路演進，以及下一代網路的核心-軟交換網路結構的四個層次功能特點;從此引申出信令網關產生背景，簡單介紹了信令網關結構以及其功能特點;再對信令網關中主要協議模塊進行分析，並著重討論了信令網關高可靠性的幾種實現方式。 -
The design of data collect and its implementation in packet filtering network firewall based of linux
包過濾防火墻中數據採集模塊的設計及實現 -
Note that all of these protocols are packet - based protocols that have been optimized to function over a wireless network with limited bandwidth and intermittent connectivity
注意，所有這些協議都是基於分組的協議，經過優化以便通過有限的帶寬和間隔的連通性在無線網路上運行。 -
Indeed, ethernet in the subscriber access network will offer several advantages over traditional first mile technologies in terms of cost, network simplicity, packet - based efficiency, bandwidth, scaling, and provisioning
基於以太網技術的寬帶社區網相比于傳統的接入網技術具有一系列優點，如經濟、簡單、高效率和高擴展性。 -
Imagine a jxta implementation on top of a network supporting 256 - byte data packets with an unreliable delivery transport, like a legacy packet - based wireless network. you can appreciate how the simple definition of a jxta message adapts itself to such adverse environments
設想在一個支持256位元組數據包的不可靠傳輸的網路（象傳統的基於數據包的無線網路）上的一個jxta實現，您就會對jxta消息的簡單定義如何使自己適應諸如這樣的不利環境表示贊賞。 -
In july 1998, the ieee standardization group selected the ofdm modulation technique for their new ieee802. 1l a standard, targeting data transmission from 11 up to 54 mbps. meanwhile, this new ieee standard is the first one to use ofdm in packet based communications. ( before the proposal of this standard, use of ofdm was limited to continuous systems ) in this paper, the author firstly presents the technical characteristics and the typical application of wireless local area network ( wlan ), analyzes its topology structure, the network configuration and etc. then the author illustrates the media access control and the operation and frame structure of physical layer
1998年7月， ofdm技術正式被ieee標準組確定為ieee802 . 11a物理層調制方法，使得無線局域網數據傳輸速率由11mbps提高到54mbps ，性能得到明顯改善。同時該標準是第一個將ofdm技術應用於包傳輸通信中的ieee標準（在該標準提出以前， ofdm的使用通常局限於連續傳輸系統中） 。本文中，作者首先介紹了無線局域網的技術特點和典型應用，分析了其拓撲結構、網路配置功能等。
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