ip based protocols

First, TCP/IP and IP are two different protocols. They are divided into different layers in the layer-7 network model. IP is the network layer protocol, and TCP is the transport layer protocol at the higher layer, TCP is built on the IP protocol, so TCP and

For the Internet, various protocols are used to regulate its usage, so that this large and complex network can work in an orderly manner. In this protocol structure, the tcp ip protocol family is the foundation. What protocols are included in this structure? In order to allow readers to fully understand some basic network communication

Network layer—The IP protocol belongs to the network layer of the network protocol stack. The functional goal of this layer is to transfer packets from one location in the network to another, which is the lowest level of processing end-to-end transmission. In the middle of the transfer process passes through many hop (hop) intermediate routers, so the routing algorithm is the core task of its design. (but unfortunately not the core task of this articl

The current operating system basically implements the TCP/IP protocol. The TCP/IP protocol stack is divided into five layers: Application Layer: A group of common applications provided to users, such as telnet, FTP, SMTP, SNTP, DNS, and HTTP, which have a port to identify. Transport Layer: The main protocols are TCP and UDP, which provide application communicatio

In the preceding correspondence, the hash function is representedHash (x) = x % 10. That is to say, to give a three-digit number, weTake the last bit of itAs the hash value of the three-digit number. Hash Tables are widely used in computer science. For example: For more information about how to broadcast packets with a small horn (Ethernet and Wi-Fi protocols) Checksum in the IP protocol: see my

Graphic TCP-IP protocols (1) In this paper, two diagrams are used to sort out the knowledge of TCP-IP protocol. The TCP communication process consists of three steps: establishing a TCP connection channel, transmitting data, and disconnecting a TCP connection channel. 1 shows the TCP communication process. Figure 1 TCP three-way handshake Figure 1 consists of

may depend on the number of forwarding times between nodes, the current network running status, data transmission rate, and topology. To find the optimal path, Each router needs to communicate with each other through the routing protocol. The routing protocol is only used to collect data about the current status of the network and find the optimal transmission path. Based on the data, the router can create a route table for future packet forwarding.

the address type to be converted, and 0x0800 is the IP address, the length of the following two addresses is 6 and 4 (bytes) for the ethernet address and IP address respectively. The op field is 1, indicating the ARP request, and the OP field is 2, indicating the ARP response. The process of the Address Resolution Protocol is as follows: Iv. RARP (Reverse Address Resolution Protocol) The opposite of ARP

Crossing, please give me more advice.IP protocol, Interner Protocol, Internet Protocol, provides three-layer addressing and three-layer communication capabilities.Grab the package as follows:Summary of content:Content analysis:1, Version: Used to identify the IP protocol version number, Ipv4/ipv62, the first length (headers length): Identifies the length of the IP header, the minimum length is 20 bytes, the

, Clnt_adr; Socklen_t CLNT_ADR_SZ;if(ARGC! =2) {printf("Usage:%s , argv[0]);Exit(1); } Serv_sock = socket (pf_inet, Sock_stream,0);if(Serv_sock = =-1) Error_handling ("socket () error");memset(serv_adr,0,sizeof(SERV_ADR)); serv_adr.sin_family = af_inet; SERV_ADR.SIN_ADDR.S_ADDR = htonl (Inaddr_any); Serv_adr.sin_port = htons (Atoi (argv[1]));if(Bind (Serv_sock, (structSOCKADDR *) serv_adr,sizeof(SERV_ADR)) == -1) Error_handling ("bind () Error");if(Listen (Serv_sock,5) == -1) Error_handlin

Hierarchy name function Agreement Application tier (Application layer) Responsible for implementing all application-related functions, corresponding to the upper three layers of the OSI reference Model FTP (File Transfer Protocol) HTTP (Hypertext Transfer Protocol) DNS (domain Name Server protocol) SMTP (Simple Mail Transfer Protocol) NFS (Network File System protocol) The Transport layer (Transport layer) Responsible for providing reliable

The network and Protocol transport layers in the TCP/IP model define two end-to-end protocols: TCP and UDP. TCP (Transmission Control Protocol) Transmission Control Protocol, which divides the input byte stream into packet segments and sends them to the Internet layer. TCP also needs to process traffic control to prevent the receiver from being unable to process too many packets sent to the low-speed receiv

Label: style blog HTTP Io color OS ar sp **************************************** **************************************** **************************************** ***Easywave time: 2014.10.30 Category: Linux applications-open-source VoIP-Based on Osip-qutecom Brief Description: reprinted, please keep the link NOTE: If any error occurs, please correct it. These are my Learning Log articles ...... **************************************** *******

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official communication, regardless of the status of the other party directly sent. This is the Flying Pigeon biography ~ Although UDP is less reliable than the TCP protocol, communication efficiency is higher than TCP. In the case of extremely poor speed, the UDP protocol is preferred, TCP is very convenient to use when the network speed is good. Using TCP in Java can be done by java.net.Socket; this classNext, the source code, for three thread subclasses, respectively, corresponding to the abo

Objective Based on C/s architecture.Web Service: Application layer protocol. (HTTP,HTTPS)Solve a specific type of application, with the application space of some kind of application to be responsible for the completion.Client: Browser-to-Application layer protocol: Http-->web Server (socket-based communication)======================================== Split Line ========================================

PHP-based restricted IP voting program IP source analysis, ip voting. The IP address source of the restricted IP voting program implemented by PHP. in this article, we analyze the restricted i