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UDP header

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Last Modified: 2008-03-10
Can someone explain the UDP header? I am new to networking.  some examples in hexa decimal and binary format would greatly appreciated.
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Sam PanwarSr. Server Administrator
Commented:
Hi,

The User Datagram Protocol (UDP) is one of the core protocols of the Internet protocol suite. Using UDP, programs on networked computers can send short messages known as datagrams to one another. UDP does not provide the reliability and ordering guarantees that TCP does; datagrams may arrive out of order or go missing without notice. However, as a result, UDP is faster and more efficient for many lightweight or time-sensitive purposes. Also its stateless nature is useful for servers that answer small queries from huge numbers of clients.

Common network applications that use UDP include the Domain Name System (DNS), streaming media applications, Voice over IP, Trivial File Transfer Protocol (TFTP), and online games.

Link good

definistion
http://en.wikipedia.org/wiki/User_Datagram_Protocol

How UDP worls:
http://www.smartcomputing.com/articles/archive/R0501/17R01/17R01.pdf?guid=

Example
http://linux-ip.net/gl/tcng/node122.html

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