SCXI-1001 | NI | User Packet Protocol

Description

SCXI-1001 | NI | User Packet Protocol

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The full name of UDP protocol is User Packet Protocol, which, like TCP protocol, is used to process packets in networks. In the OSI model, SCXI-1001 is located in the fourth layer – the transport layer, on top of the IP protocol. UDP has the disadvantage of not providing packet grouping, assembly, and not being able to sort packets, which means that after a message is sent, it cannot be determined whether it has arrived safely and completely. UDP is used to support network applications that require data transfer between computers. Many client/server mode network applications, including online video conferencing systems, require the use of UDP protocol. The UDP protocol has been in use for many years since its inception. Although its initial glory has been overshadowed by some similar protocols, even today, UDP is still a very practical and feasible network transport layer protocol.

Due to the limited software and hardware resources of embedded systems, the TCP/IP protocol stack running in most SCXI-1001 embedded systems has been tailored according to the characteristics of the embedded system. Currently, the widely used embedded TCP/IP protocol stacks include ucTCP IP, LWIP, uIP, Linux TCP/IP, etc. UIP is a micro TCP/IP protocol stack designed specifically for embedded microcontrollers with 8 and 16 bits, which requires very little memory during runtime and implements commonly used TCP/IP protocols; The code comments are detailed and can be used for commercial or non-commercial purposes. Due to the above characteristics, uIP is widely used in the network interconnection of embedded systems.

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