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Indicate the source and author's contact information during reprinting. Author's contact information: the communication protocol between ActiveSync and Window Mobile is not complex, and TCP/IP is run on RNDIS + USBNET, the application layer protocols on TCP/IP include RAPI and RRAC. Some time ago, I completed the implementation of the RAPI and RRAC protocols on the PC end and the device end. In this series,
First Order The author introduces the client-server paradigm, the interface of socket sockets and common functions, and then enumerates the demo of UDP and TCP respectively. This chapter about the next, the demo is a c example, the previous document introduced the UDP demo. So here's a demo of TCP. Two socket keyword Socket Communication steps: (simple 4 steps) 1. Set up server ServerSocket and client sockets 2. Open the output input stream connected
header field, minus 1 on a server side, stop the transmission when the value is just down to 0 o'clock, and finally the server side receiving the request is put back to the response of the status code 200OK. The trace method allows the client to query how the requested request is processed, modified/tampered with, but it is prone to xst attacks, which are not normally used. Connect: Require tunneling
the Ethernet receive this frame and check the target address. If the target address and network adapter address are the same, the adapter software processes the received frame and transmits the data to the higher layer in the protocol stack. Chapter 2 Internet Layer Addressing and sending-- In a selected route netw
TCP/IP Note 2. Network Layer (2) -- ICMP, RIP, OSPF, BGP 1. ICMPICMP (Internet Control Message Protocol): improves the chances of successful IP datagram delivery. 1.1 features ICMP allows the host or router to report errors and reports exceptions. ICMP is not a high-level protocol
2. OMA protocol2.1 Why the OMA protocol is requiredWith the rapid development of global mobile communication, in order to improve the quality of mobile communication service, meet the needs of people, and solve the problem of data synchronization between different networks, and then realize interconnection, the urgent task is to establish a universal and safe and reliable Unified standards and specification
general processing process of the socreate function is as follows: 1. Protocol exchange table found. Find the pointer or NULL pointer of the protosw structure matching the protocol based on the function parameters. 2. Allocate and initialize the socket result. Allocate a new Socket Structure and initialize related fields. 3. pru_attach request. Each
is the same as the IP header check.The Federated Icmp_hun (First Union) and Icmp_dun (data Federation) access multiple ICMP messages according to Icmp_type and Icmp_code. Each ICMP message is usedIcmphun; only a subset of the messages use Icmp_dun. Fields that are not used must be set to 0.The ICMP packets are encapsulated in the IP datagram.PROTOSW Structure of 2.ICMPINETSW[4] 's PROTOSW structure describes ICMP and supports kernel and process acces
Server forwards each request it receives from the bottom and each response received from the top. Strict routing: strict routing. If the proxy server complies with the rfc2543 and the routing rules in the latest RFC version, we call this proxy server a strict route. When the Routing header field is the current Uri, strict routing may cause the proxy server to damage the request-URI content. In this case, strict routing is not used. We recommend that you use loose routing. A proxy with strict ro
Network Layer 2 (IPv4 and IPv6 addresses and related protocols) IP (internet protocol) protocol is the core protocol of the TCP/IP protocol family and the network layer of the internet.
1 SPDY protocol 1.1 Overview SPDY is the abbreviation of speedy, which is the pronunciation of speedy. The SPDY protocol has published four drafts: Version 1, version 2, version 3, and Version 3.1. Version 4 is currently in the trial phase, but has not yet been released. There are some code for version 4 in Chromium. Advantages of SPDY over HTTP: Disadvantages: D
binaryunsafe string, the length of the string is saved in front of the string251 1 bytelength the^2 3 byte(the first byte is 252) length the^34byte(the first byte is 253)Else9byte(The first byte is 254) Handshake packet the protocol is sent by the server by the client. The number of bytes in parentheses, the number of bytes is n is a null string,and thenumber of uppercase n indicates length code binary. S
Getting Started with the Web (2)-http protocol first, what is the HTTP protocol HTTP is shorthand for the Hypertext Transfer Protocol (Hypertext Transfer Protocol), an application-layer prot
development status is satisfactory. Therefore, the focus of selection is not at this level. However, as the core of the network, there is no substantial breakthrough in the router technology that acts as the interconnection between networks. Therefore, a new routing technology came into being-layer-3 switching technology, which is a routing technology because it works on the layer-3 network
One day, when I was restricted by many secular rules and could not do what many normal people could do, I suddenly felt: people should not have come to this world! Since we fell into the ground, we have been destined to suffer a lot in our life... There is always no proper balance between breaking rules and conforming rules. I will still choose to stick to the rules when I think that fox, the female killer in the movie "Assassin's League" (also known as the wanted order), will eventually end the
Introduction to the HTTP protocolThe HTTP protocol is an abbreviation for the Hyper Text Transfer Protocol (Hypertext Transfer Protocol) and is a transfer protocol for transmitting hypertext between the World Wide Web (www:world Wide Web) server and the local browser.HTTP is an object-oriented
troubleshooting.Second, restrictions on the protocol. To use the layer-2 routing tracking function, you must run the CDP protocol on all switches and interfaces in the network, and the CDP protocol must work properly. CDP becomes the Cisco Discovery
Lan exchange technology can also be called layer-2 Switch Exchange Technology, the content mainly includes the working principle of Layer 2 switching, network loops, and how to use the Spanning-Tree Protocol to solve Network loops, VLANs, and VTP technologies, this article m
The previous article analyzed the overall concept of the Internet, from bottom to bottom, and the design philosophy of each layer of protocol. This is a question from the designer's perspective. Today I want to switch to the user's perspective to see how users interact with these protocols from top to bottom. ========================================================== ====================================== I
The Hypertext Transfer Protocol (Http-hypertext Transfer Protocol) defines the transport rules for communication between the client and the server. Currently the latest version is 1.1,http is an application-layer protocol, consisting of requests and responses, and is a standard client server model.First, Features:1, su
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