Udp- datagram transport service, Computer Network Security

UDP- DATAGRAM TRANSPORT SERVICE

INTRODUCTION:

 UDP is the one of the transport protocols in TCP/IP protocol suite. UDP protocol accepts applications on the computers to transmit and receive datagram packet. UDP has a packet format. It uses best-effort delivery function.

 

THE NEED FOR TRANSPORT PROTOCOLS:

 Internet protocol can not differentiate between application programs running on the similar computer. Fields in the IP datagram header denote to computers, not applications. A protocol that gives an application program to operate as the end point of communication is called as a transport protocol or an end-to-end protocol.

 

THE USER DATAGRAM PROTOCOL (UDP):

 TCP/IP has two transport protocols:

  • UDP
  • TCP

 

UDP:

 UDP is less complex and simpler to understand. It does not give the type of service a typical application expects.

 

CHARACTERISTICS OF UDP:

UDP has the following functionalities.

  • It is an end-to-end protocol. It gives application-to-application communication.
  • It gives connectionless service.
  • It is a Message-Oriented architecture.
  • It uses best-effort delivery function.
  • It follows arbitrary interaction.
  • It is platform independent.


THE CONNECTIONLESS PARADIGM:

 

 UDP does not require to pre-establish communication and also there is no requirement to terminate communication. UDP allows an application to time delay long intervals between two messages. There are no Control Messages; only Data Messages. So it has very low load.

 

MESSAGE-ORIENTED INTERFACE:

 

 UDP gives application programs a Message-Oriented Interface. It does not split messages into packets for transmission and does not include messages for delivery.

 

ADVANTAGES:

 

  • Applications can relay on protocol to preserve data boundaries.


DISADVANTAGES:

 

  • Each UDP message have to fit into a single IP datagram.
  • It can result to an inefficient need of the underlying network.

 

Posted Date: 8/1/2012 9:44:05 AM | Location : United States







Related Discussions:- Udp- datagram transport service, Assignment Help, Ask Question on Udp- datagram transport service, Get Answer, Expert's Help, Udp- datagram transport service Discussions

Write discussion on Udp- datagram transport service
Your posts are moderated
Related Questions
CRC in matlab

Encode the following plaintext, using the Caesar cipher: LORD OF THE RINGS b) The following ciphertext jw njbh lxmn cx kanjt has been encoded using a

(a) Briefly explain the following security goals provided by cryptography: confidentiality, authentication, integrity and non-repudiation. (b) State Kerckhoff's Princip

IPV6 NEXT HEADER It is given in the figure below:

Problem 1: a) One of the limitations of file processing systems is data inconsistency. Briefly explain with the help of an example what do you understand by this phrase. b)

how can you enter the ASVAB practice test on line?

- Alice, Bob and Charlie have a secret key a=3, b=4, c=5, in that order. - They would like to find a common secret key using Diffie-Hellan key exchange protocol (with g=2, p=5).

Suppose you are working for one of the leading credit reporting agencies that manages users' credit rating info with different financial institutions.  The company wishes to implem

Question: (a) Describe fully with example the two access control methods available to implement database security. (b) Discuss why database statistics (meta data) provide es

QUESTION (a) What do you meant by data spoliation? (b) Justify the following statement: "Disk imaging differs from creating a standard backup of disk." (c) Why do yo