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Data communication and network notes-error control protocol at the data link layerThe following describes three protocols for error control. 1. the Stop-and-Wait ARQ protocol is used to Stop the process of waiting for an automatic recurring request. In the figure, the Sn points to the number of the frame to be sent, rn points to the number of the frame to be rece
The development of mobile communication has a crucial impact on the network. Now, as the network is updated and IPv4 is updated to IPv6, IPv6 will also be used as the mobile device for mobile communication. The Mobile IPv6 protocol for Mobile is the latest version of the Mobile network. Mobile IPv6 protocol Mobile IPv6
is, the web server tells the web browser that the file type is HTML documents, GIF images, audio files, or independent applications.Program. Most Web browsers have a series of configurable auxiliary applications that tell the browser how to handle various types of content sent by the Web server. Ii. HTTP Communication Mechanism In a complete HTTP communication process, the following seven steps are com
Computer network refers to the different geographic locations of multiple computers with independent functions and their external devices, through the communication lines connected together,Under the management and coordination of network operating system, network management software and network communication protocol, the computer system of resource sharing and
Here the main records of the Zookeeper Client communication protocol. The agreement is not found in the official documentation. Here is the protocol of the records obtained by analyzing the client code. I. Communication ProcessThe client initiates the connection and sends the handshake packet for a timeout negotiation,
Systems that communicate with each other through the network (such as communications between the client and the server) must have " Common Language " This language is the message protocol. Messages that comply with the message protocol can be understood by our system. We know that the message transmitted over the network is a byte stream, but what we handle in our mainstream object-oriented systems i
FreeBuffer of the Ipctheadstate class, and the parameter Relcookie points to the Ipcthreadstate object of the current thread.Then assign to the parcel class of the different member variables, Mdata is the data buffer of the real address, mdatasize for the data buffer size, Mdatapos for the next to read in the location. Mobjects is the offset array start address, mobjetctsize is the offset array mobjects the next location to read the data, mobjectscapacity is the size of the offset array.Mowner
Http://forums.oracle.com/forums/thread.jspa? Threadid = 613450 If the communication protocol TNS of Oracle is not completely disclosed to the outside world, it can be used only when it becomes an Oracle Partner and pays a certain fee to Oracle. Jonah H. Harris has made an in-depth research on the Oracle communication protoc
UDP is an unreliable protocol that establishes a socket on both ends of the communication, which does not establish a persistent communication connection and only sends data unilaterally to the other party without checking the results of the transmission.UDP protocol-based communic
A few days ago, I saw the official version of SuperSocket 1.4 released by Jiang Dayu. Due to the use of network port communication programming in recent projects, I also checked the SuperSocket source code and found that the architecture is still clear and easy to expand, for detailed Chinese documents, see http://www.cnblogs.com/jzywh/archive/2011/04/19/supersocketdocument.html. Today, I want to talk about customizing an application
The first example is nonsense: From the company to the present, we are experiencing and growing ...... From the beginning to write 25160 drivers (now, this is actually a task of enhanced version interview nature), to subsequent protocol programming, and then to the current core program upgrade development, i'm all excited! Every time I look back on these times, I will feel inexplicable joy and pride. Although it is 25160 introduced to me, but for me,
WebSocket is a new communication protocol HTML5, the current popular browser supports this protocol, such as Chrome,safari,firefox,opera,ie, and so on, the earliest support for the protocol should be Chrome, Since the CHROME12 has started to support, as the draft agreement changes, the implementation of the various bro
In most mobile applications involving network communication, because the speed of GPRS network is not ideal in the present situation, how to efficiently request the network data becomes the bottleneck problem that most applications face. At the same time, in some applications may use a variety of protocols, such as IM communications, video stream types of applications will sacrifice data integrity to more efficient access to data, in this type of appl
Key Points of interfaces and communication protocols: 1. How to distinguish different communication devices; 2. How to send and identify valid data on the Link; 3. How to Use the physical characteristics of the link and the signal encoding form; 4. How to transmit valid data from one end to the other; 5. How to control link traffic and exceptions 1. The key to distinguishing different
Redis Communication Protocol Specification Redis is a key-value-based memory-based database. Program Then we know that we can use redis-CLI to connect to redis-server for communication and perform various operations. So how do we use advanced languages such as C, Java, Python, and C # To send a request to operate data and get the relevant data from the database
Objective:Work in the WebSocket Protocol 10 version of the agreement in English, see here:Http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-10This article is equivalent to a summary of the work.First of all, you need to briefly understand why the birth of WebSocket communication protocol, the Web communication
At present, there are two main ways to send data: active continuous sending mode and passive command and answer sending mode.To send data, serial communication, the first to set the communication parameters.Serial communication first sets the communication parameters.The first section sets the general parameters.Mainly
We have introduced the concepts of communication protocols at the logic control layer. Based on the examples mentioned above, we will explain them in detail here. First, let's review the basic information of the example. The following is an example of the actual application mdash; Communication Protocol (logical control layer) between the host computer and the s
Beijing Institute of Electronic Technology (BESTI)Lab Report CoverCourse : Fundamentals of Information Security system designclass : 1352name : (rank by contribution size) Lihangyi's Liu WeihanStudy number : (by contribution size) 20135211 20135216score : Instructor: Lou Jia Pengdate of experiment : 2015.12.1Experimental Classification :Preview Level :experimental time : 15:30-17:30Instrument Group : 11compulsory/elective : CompulsoryExperiment Number : 5Experiment name :
The gradual integration of modern communication and network development also means that their technologies are becoming more and more complex. To enable multi-party protocol coordination, we constantly develop new technologies to complete complex work. With the use of MPLS Multi-Protocol Label exchange technology, we have seen many application prospects in this r
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