User data submitted to agreement
UDP is ISO reference model a connectionless transport layer protocol, provide oriented affairs of simple unreliable transmit information service. UDP protocol is basically the IP protocol and the upper level protocol interfaces. UDP protocol for ports in the same device distinguish operation on multiple applications.
introduction
UDP protocol's full name is the user data submitted to agreement, in the network it with TCP protocol as used for handling packets. In the OSI model, in the fourth layer - the transport layer, in the IP protocol of a layer. UDP have not provide data submitted to grouping, assembly and unable to sort of data packets faults, that is, when messages are sent after, not know whether its safety integrity to arrive. UDP used to support those who need the data transfer between computers network application. Including the network video conference system, the numerous client/server model of network application all need to use the UDP protocol. UDP protocol from published so far has been used for many years, although its original luster has been some similar agreement covered, but even today, UDP can still be a very practical and feasible network transport layer protocol.
With known TCP (TCP) agreement is same, UDP protocol is located directly Internet protocol (IP) agreement of top. According to the OSI (OSI) reference model, UDP and TCP belong to the transport layer protocol.
UDP protocol's main function is to network data flow compressed into data submitted to form. A typical data submitted to is a binary data transmission units. Each data submitted to the first 8 bytes to contain header information, the remaining byte is used to contain specific data transmission.
