Udp- datagram transport service, Computer Network Security

Assignment Help:

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.

 


Related Discussions:- Udp- datagram transport service

Explain the main stages in the penetration testing process, Question: (...

Question: (a) i. Explain what is meant by Discretionary Access Control and Mandatory Access Control ii. Which method would be the most effective to ensure that users do

Listing assets in order of importance-risk management, Listing Assets in Or...

Listing Assets in Order of Importance Weighting should be created for each category based on the answers to questions. The relative importance of each asset is calculated usin

Find the services implemented on your computer, Question: (a) Which typ...

Question: (a) Which type of attacker represents the most likely and most damaging risk to your network? (b) What is the basic reason that social engineering attacks succeed?

Keystroke-based access control model, Suppose you are working for one of th...

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

Attacks on cryptosystems-cryptography, Attacks on Cryptosystems Attacks a...

Attacks on Cryptosystems Attacks are attempts to achieve unauthorized access to secure communications have characteristically used brute force attacks. Attacker may alternatively

Digital certificates-cryptography, Digital Certificates Digital Certific...

Digital Certificates Digital Certificates are electronic document having key value and identifying information about entity which controls key. Digital signature which is attach

Which authorization model could be ideal, Question: (a) Your office ad...

Question: (a) Your office administrator is being trained to take server backups. Which authorization model could be ideal for this situation: MAC, DAC or RBAC? Justify your a

Using icmp reachability, USING ICMP TO TEST REACHABILITY:  ICMP can a...

USING ICMP TO TEST REACHABILITY:  ICMP can also be used to test several tools. An Internet host A, is reachable from another host B, if data packets can be send from A to B. P

Draw the waveform for an asynchronous transmission, QUESTION: (a) For ...

QUESTION: (a) For the bit stream 010011, sketch the waveforms for each of the code indicated. Assume that the signal level for a space in NRZ-L is positive; the signal level f

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd