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user datagram protocol 晴

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user datagram protocol

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User Datagram Protocol (UDP) ing: Time :
User Datagram Protocol is the definition used in the interconnection network to provide packet-switched environment, the computer communication protocol. The default network protocol that this protocol (IP) is the underlying protocol. This protocol provides procedures to send a message to another user the easiest protocol mechanism. This agreement is for the operation, did not provide submission and copy protection. If the application requires reliable data transfer should use the Transmission Control Protocol (TCP). Packet format is as follows: domain
port is an optional field, when it makes sense, it refers to the port the sending process, which also assumes that no other information in the case, return to where information should be sent. If you do not use it, fill in the domain 0. Destination port in a specific destination network address meaningful. Length refers to the length of the user datagram octal. (This shows that the minimum packet length is 8.) Checksum 16 bits, is the IP header, UDP header and data information in the header of digital access the other hand and then take the anti-received.

header is conceptually prior to the UDP header information, which includes the address, destination address, and UDP protocols used in length. This information allows to receive the information can not be wrong. The validation process and the process used in the same TCP. If the calculated checksum is zero, it will be all zeros sent. Checksum value of zero means that all the sender did not result in checksum.
user interface
user interface should allow the creation of new receive ports, receive operations in the receiving port are: should return an octal number that the port and address, allowing packets to send, specify the data and destination port and destination address. UDP module must be able to determine the and destination network address, and must be able to learn from the header in the protocol used. One possible way is to return the data interface to report, including the receive operation to return the header. This interface should also allow the UDP to send a complete IP datagram with a header for transmission. To determine the consistency and the IP checksum calculation. The main purpose of this agreement is the Internet name server and Trivial File Transfer Protocol.
protocol number
use it in the IP, its protocol number is 17 (octal 21).

Meaning of user datagram protocol (User Datagram Protoco, UDP) is a simple datagram-oriented transport layer (transport layer) protocol, IETF RFC 768 UDP is the official specification. In the TCP / IP model, UDP for the network layer (network layer) below and the application layer (application layer) above provides a simple interface. UDP only provides unreliable data delivery, it is sent to the network once the application layer data is sent out, do not keep data backup (so UDP is sometimes also considered to be unreliable datagram protocol). UDP in the IP datagram header just joined the multiplexing and data validation (field). UDP header field consists of four parts, two of which are optional. The 16-bit port and destination port used to mark the process of sending and receiving applications. Because UDP does not require answers, so the port is optional, if not the port, then set to zero. Destination port in the back is a length, in bytes, the length of the field, used to specify the UDP datagram including the data portion of the length of the minimum length of 8 (octets). First left to 16-bit is used and the data portion of the first to do with the checksum, this part is optional, but in practice generally to use this feature. Due to lack of reliability, UDP applications must generally be allowed a certain amount of packet loss, error, and replication. Some applications, such as TFTP, if needed, must be fundamental in the application layer to increase the reliability of mechanisms. But most applications do not require a reliable mechanism for UDP, and may even decrease because of the introduction of a reliable mechanism for performance. Streaming Media Streaming media, real-time multimedia gaming and voice over IP (VoIP) is a typical UDP applications. If an application requires high reliability, you can use the Transmission Control Protocol Transmission Control Protocol instead of UDP. The lack of congestion avoidance and control mechanisms, network-based mechanisms need to reduce loss of control and high-speed UDP traffic due to load effect resulting from congestion collapse. In other words, because the UDP Fa Songzhe can not detect the congestion, so as to use packet queue and discarded technology router basic equipment such networks tend to become lower UDP traffic is too large an effective tool. Datagram Congestion Control Protocol Datagram Congestion Control Protocol (DCCP) is designed by stream media types such as high-rate UDP stream, congestion control to reduce the hosts to increase this potential problem. Typical of many on the network-critical applications using UDP protocol is similar to some extent. These applications include the Domain Name System Domain Name System (DNS), simple network management protocol simple network management protocol (SNMP), Dynamic Host Configuration Protocol Dynamic host configuration protocol (DHCP) and Routing Information Protocol Routing Information Protocol (RIP) and so on. User data header format? Domain??? port is an optional field, when it makes sense, it refers to the port the sending process, which also assumes that no other information in the case, return to where information should be sent. If you do not use it, fill in the domain 0. Destination port in a specific destination network address meaningful. Length refers to the length of the user datagram octal. (This shows that the minimum packet length is 8.) Checksum 16 bits, is the IP header, UDP header and data information in the header of digital access the other hand and then take the anti-received. ?? In Baotou is conceptually prior to the UDP header information, which includes the address, destination address, and UDP protocols used in length. This information allows to receive the information can not be wrong. The validation process and the process used in the same TCP. ?? If the computed checksum is zero, it will be all zeros sent. Checksum value of zero means that all the sender did not result in checksum. ??? User interface??? User interface should allow the creation of new receive ports, in the receiving port receive operation are: should return an octal number that the port and address, allowing packets to send, specify the data and destination port and destination addresses. ?? IP layer interface??? UDP module must be able to determine the and destination network address, and must be able to learn from the header in the protocol used. One possible way is to return the data interface to report, including the receive operation to return the header. This interface should also allow the UDP to send a complete IP datagram with a header for transmission. To determine the consistency and the IP checksum calculation. ??? Protocol application??? The main purpose of this agreement is the Internet name server and Trivial File Transfer Protocol. ??? Protocol number??? In the IP when you use it, its protocol number is 17 (octal 21). More entries Atlas Atlas
Sammy
2013/07/04 06:42
the user datagram protocol (udp) is a minimal message-oriented transport layer . ( for this reason udp is sometimes expanded to "unreliable datagram protocol" .
Priscilla
2013/07/09 01:13
user datagram protocol - definition
Evangeline
2013/07/11 09:53
udp widely known as user datagram protocol, an alternative to the transmission control protocol (tcp) and, together with ip, is also referred to as udp/ip. like the .
Enid
2013/07/13 12:20
ipv6.com - user datagram protocol (udp)
Boyce
2013/07/22 16:26
udp, singkatan dari user datagram protocol, adalah salah satu protokol lapisan transpor tcp/ip yang mendukung komunikasi yang tidak andal (unreliable) .
Ives
2013/08/07 14:06
user datagram protocol - wikipedia bahasa indonesia .
Catherine
2013/08/13 18:44
the user datagram protocol is one of the two original end-to-end protocols of the internet; it has lower overhead than the transmission control .
Cathy
2013/08/21 04:54
user datagram protocol - encyclopedia article - citizendium
Luke
2013/08/23 19:54
udp (user datagram protocol) is a communications method (protocol) that offers a limited amount of service when messages are exchanged between computers .
Tamara
2013/08/24 02:12
what is udp? - definition from whatis.com - see also: user .
Mortimer
2013/08/25 22:34
user datagram protocol (udp): udp is a connectionless transport layer protocol: each . application produces exactly one udp datagram, which in turn causes one ip .
Mark
2013/08/27 06:20
user datagram protocol (udp):
Victor
2013/09/09 20:20
definition of user datagram protocol from select computer dictionaries.
Roger
2013/09/11 02:04
user datagram protocol - computer dictionary definition
Cedric
2013/09/19 04:22
user datagram protocol (udp): a connectionless, unreliable delivery . used to verify that the udp datagram has reached it's correct destination (since .
Danny
2013/09/20 02:48
lesson 14: user datagram protocol
Harold
2013/09/21 05:29
this tutorial provides information regarding the details of transmission control protocol (tcp), user datagram (udp) and raw socket from tcp/ip stack which used in .
Webb
2013/09/28 17:17
the details of transmission control protocol (tcp), user .
Roy
2013/10/03 15:59
while ((userin=in.readline())!=null) { // read user input until ctrl z sendbuffer= userin. a datagram protocol, allows one system to send a datagram without .
Otis
2013/10/10 06:08
user datagram protocol exercise
Regina
2013/10/12 14:26
this page describes the term user datagram protocol and lists other pages on the web where you can find additional information.
Ternence
2013/10/14 00:09
what is user datagram protocol? - a word definition from the .
Rodney
2013/10/15 19:58
this user datagram protocol (udp) is defined to make available a datagram mode . is the length in octets of this user datagram including this header and the data.
Cassie
2013/10/21 10:40
user datagram protocol (udp) rfc
Monroe
2013/10/23 14:06
user datagram protocol or udp is part of the internet protocol suite, using which, programs running on different computers on a network can send short .
Florence
2013/10/23 22:14
udp (user datagram protocol)
Don
2013/10/24 22:56
user datagram protocol (udp) is one of the core protocols of the internet protocol suite. udp is sometimes called the universal datagram protocol.
Asa
2013/10/25 11:44
protocol: user datagram protocol
Claudia
2013/10/28 12:59
user datagram header format fields - source port is an optional field, when . postel [page 1] 28 aug 1980 user datagram protocol rfc 768 fields destination port has a .
Ignace
2013/10/28 21:40
rfc 768: user datagram protocol
Ahern
2013/10/31 20:30
the user datagram protocol offers only a minimal transport service - non-guaranteed datagram delivery - and gives applications direct access .
Donna
2013/11/05 00:25
udp, user datagram protocol
Theobald
2013/11/26 04:56
the user datagram protocol (udp) is a transport layer protocol defined for use with the ip network layer protocol. it is defined by rfc 768 written by john postel.
Sonia
2013/12/01 15:40
user datagram protocol - wikipedia, the free encyclopedia
Martha
2013/12/06 09:53
user datagram protocol (udp): a connectionless, unreliable delivery service using the ip . required protocol port number to demultiplex datagrams among waiting processes.
Martina
2014/01/02 12:42
lesson 14: user datagram protocol (udp)
Marguerite
2014/01/03 07:50
udp - user datagram protocol - is a simple osi transport layer protocol for client/server network applications based on internet protocol (ip) .
Lorry
2014/01/09 10:40
udp - user datagram protocol
Lena
2014/01/28 04:35
user datagran protocol (udp) is one of the core protocols of the internet protocol suite. udp allows network computers to.
Boyd
2014/02/11 05:29
user datagram protocol - a knol by michael sallander
Moira
2014/02/14 19:59
introduction this user datagram protocol (udp) is defined to make available a datagram mode of packet-switched computer communication in the environment of an .
Chelsea
2014/02/24 03:52
user datagram protocol | chipkin automation systems - bacnet .
Lydia
2014/03/07 17:05
the user datagram protocol (udp) is a transport layer protocol in the tcp/ip protocol suite. two uses of the user datagram protocol (udp) are listed below.
Sebastiane
2014/03/15 05:10
user datagram protocol - hill2dot0
Fitzgerald
2014/03/27 04:28
this user datagram protocol (udp) is defined to make available a datagram mode of packet-switched . the protocol is transaction oriented, and delivery and duplicate protec .
Wendy
2014/03/31 01:34
user datagram protocol
Suzanne
2014/04/04 15:13
rfc 768 - user datagram protocol . this protocol provides a procedure for application programs to send messages to other programs with a minimum of protocol mechanism.
Alston
2014/04/21 00:36
rfc 768 (rfc768) - user datagram protocol
Philomena
2014/05/03 11:19
user datagram protocol is an unreliable, connectionless protocol. it does not check for errors, or even to see if the transmitted data was received.
Perry
2014/05/05 19:29
user datagram protocol (udp)
Curitis
2014/05/09 06:37
udp (user datagram protocol) is a communications protocol that offers a limited . the user datagram protocol offers only a minimal transport service - non-guaranteed .
Garfield
2014/05/09 17:30
udp ( user datagram protocol )
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