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Programming via Java Network (1) network architecture and communication Protocols I know that the IP protocol corresponds to the network layer, the TCP protocol corresponds to the transport layer, and the HTTP protocol corresponds to the application layer,The three are inher
(FTP) transfer is used with TCPUDP is a message-oriented protocol, communication does not need to establish a connection, the transmission of data is naturally unreliable,UDP is generally used for multipoint communication and real-time data services , such as voice broadcast, video, QQ, TFTP (Simple File transfer), SNMP (Simple Network Management Protocol), RTP (Real-time delivery protocol) RIP (Routing Information protocol such as reporting stock ma
OSI Layer-7 network model and TCP/IP layer-4 Network Model Original by Mu ant Community Www.mumayi.net, this post address: http://bbs.mumayi.net/viewthread.php? Tid = 932283 1. OSI network layered Reference Model Network Proto
Introduction to TCP/IP network protocols Some time ago I made a development, involving network programming, and the development process was quite smooth, but I always felt a bit confused after the task was completed. The main reason is that you are not familiar with network
From: http://blog.jobbole.com/74795/ Some time ago I made a development, involving network programming, and the development process was quite smooth, but I always felt a bit confused after the task was completed. The main reason is that you are not familiar with network protocols and are not clear about some concepts. Later, I spent some time learning about these networ
TCP/IP and HTTP are not understood. After reading this article, the network knowledge is all understood Preface Before writing, first give this article a clear positioning, after reading this article, I hope you can: For the computer network has a preliminary understanding and understanding of some classic terminolog
TCP/IP Note 2. Network Layer (1) -- IP, subnet, CIDR1. IP1.1 supporting agreementIP is one of the two most important protocols in the TCP/IP system.There are also four protocols used in combination with the
. So the traceroute just fills this flaw.The principle of traceroute is very very interesting, it receives the IP of the destination host, first sends a ttl=1 to the destination host (remember what TTL is?). UDP (the next to know what UDP is the packet), and after the first router receives the packet, the TTL is automatically reduced by 1, and the TTL becomes 0, the router will discard the packet, and at the same time produce a host unreachable ICMP d
Original: http://www.cnblogs.com/xuanku/p/tcpip.htmlThe TCP/IP network protocol stack is divided into four tiers, from bottom to top in turn: Link LayerIn fact, there is a physical layer under the link layer, refers to the transmission of electrical signals, such as the common twisted-pair cable, optical fiber, as well as the early coaxial cable, etc., t
Source: TaubonrenLinks: http://blog.jobbole.com/99694/Since it is a network transmission, involving the interaction between several systems, the first thing to consider is how to accurately locate one or several hosts on the network, and how to carry out reliable and efficient data transmission. This will use the TCP/IP
Network protocol HTTP, TCP/IP, SocketThe network seven layer is from the bottom up to the physical layer, the data link layer, the network layer, the transport layer, the conversation layer, the presentation layer and the application layer respectively.The physical layer, th
The Maximum Transmission unit (Maximum transmission Unit,MTU) refers to the maximum packet size (in bytes) that can be passed on a layer of a communication protocol. The network in the data link layer has a limit on the length of the data frame, the MTU value of different networks is different, the commonly used Ethernet is 1500 bytes.If the datagram size to be transmitted at the IP layer is larger than the
, in the network layer IP header has 20 bytes, That is, in the IP layer can accept the upper layer protocol the most bytes is 1480, in the transport layer, if the use of TCP, remove TCP head, there are 12 bytes of TCP timestamp, a
You may have heard of the TCP/IP protocol. Do you know what TCP is and what Ip is? In this chapter, we will learn about the most widely used protocol on the network. 7.1 network transmission layeringIf you have passed the compute
audio, video, and binary data, over TCP/IP networks. IMAP-Internet Message Access Protocol IMAP is used to store and retrieve emails. POP-Post Office Protocol POP is used to download emails from the email server to your PC. FTP-the file transfer protocol FTP is used to transfer files between computers. NTP-The Network
Network Layer IP protocol of TCP/IP series when data is directly transmitted over the Internet, the router routes data according to the IP address datagram. when a host needs to send data, the target host is generally a host in the LAN or a host outside the network.If it is
Windows sockets+ Network Winsockis the standard for socket under Windows. winsock programming is divided into UDP "Windows sockets + UDP" , TCP "Windows socket + TCP" programming. The Windows socket is built on the network, and UDP programming uses the User Datagram Protocol (User Datagram Protocol,
Abstract: This paper introduces a new design method of message queue-based duplicate server communication software, which is different from the parallel server and general duplicate server communication software, this new software has the advantage of generating a small number of sub-processes, and is easy to manage the connection between the client and the server. It is suitable for the case where the number of clients is large and the random data communication occurs, it can effectively improv
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
1. TCP/IP layered model Of course, here we will only discuss the important layer-4 01. Application Layer (Application Layer): the Application layer is a broad concept. It has some similar system-level TCP/IP applications and Application protocols, as well as many enterprise applications and Internet applications. The h
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