application layer in osi model

First, the actual application of the network classificationBlock data streams: FTP, TFTP, inventory updateNo direct human interaction requiredBandwidth is important, but not a critical factorInteractive Data Flow: Inventory queries, database updatesInteractiveResponse timeFacts app Data flow: VoIP videoPeople-to-people interactionEnd-to-end latency is criticalSecond, network topology classification650) this.width=650; "src=" Http://s3.51cto.com/wyfs02

host scan discovery via OSI layer three (network layer)OSI The third layer of the model is the data link layer, where the protocols that work primarily are IP and ICMP. You can use diff

　　　　　　　　　　　Network programmingNetwork model: OSI (Open System Interconnection Open System interconnect) Reference Model TCP/IP Reference Model Seven Floor Brief:1. Layer Physical layer: The main definition of phy

Layer function in OSI TCP/IP protocol familyApplication layer File transfer, e-mail, file service, virtual terminal tftp,http,snmp,ftp,smtp,dns,telnetpresentation layer data formatting, code conversion, data encryption no protocolsession layer lifted or established contact w

The correspondence between the OSI model and the TCP/IP protocol the layers of popular TCP/IP protocols are not divided by the OSI reference model, but have a general correspondence with them. Network layer protocols mainly include the IP protocol to encapsulate and send IP

Application layer: HTTP Application layerPresentation layer: Coding presentation LayerSession Layer: Port Session LayerTransport Layer: TCP/UDP Protocol Transport LayerNetwork layer: IP

representation, implementation of specific functions, such as encryption and decryption (Ascii,mp4 ... ）。Session Layer: Managing the application session, synchronizingTransport Layer: Reliable (TCP) and unreliable (UDP) transmissions, pre-transmission detection, flow controlNetwork layer: Provides logical address (IP)

Layers in OSI Function TCP/IP protocol family Application Layer File transmission, email, file service, virtual terminal TFTP, HTTP, SNMP, FTP, SMTP, DNS, Rip, Telnet Presentation Layer Data formatting, code conversion, and Data Encryption No agreement Session

OSI Virtual Machine Model "Virtual" means that although an object or device does not exist at a certain time, people can see it. The word "Virtual Machine" is easy for many people to think about. Pop Media and News Broadcasts often use the word "virtual" when reporting new developments in computer simulation and computer games. In any situation, the use of "virtual" means that although an o

Layer description The application layer provides the corresponding interface for users to use the network connection function.The presentation layer completes data formattingThe Session Layer controls the communication links between two hosts (open, operate, and close)The t

OSI Virtual machine model "Virtual" is to hint at a certain time, although an object or device does not exist, but people can see it The word "virtual machine" is easy for many people to have a rich association. The word "virtual" is often used in popular media and news broadcasts when reporting on new developments in computer simulations and computer games. In either case, the use of "virtual" is sug

the presentation layer, the persistence layer, the business layer, and the domain model layer. Each level has its own unique responsibility and cannot mix its functions with other levels. Each application

First, the physical layer1. Responsible for the transmission of the bit stream between the equipment, physical interface, electrical characteristics and so on.It's not, it's only 1, 3, 2, 64 lines for transmitting data, the rest of the line doesn't matter,Similar functions are controlled by the physical layer.2. Most common devices in the physical layerSecond, Data link layer1. The main function of data link layer