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Difference between Connection-oriented and Connection-less Services

  • Difficulty Level : Easy
  • Last Updated : 21 May, 2020

Both Connection-oriented service and Connection-less service are used for the connection establishment between two or more than two devices. These type of services are offered by network layer.

Connection-oriented service is related to the telephone system. It includes the connection establishment and connection termination. In connection-oriented service, Handshake method is used to establish the connection between sender and receiver.





Connection-less service is related to the postal system. It does not include any connection establishment and connection termination. Connection-less Service does not give the guarantee of reliability. In this, Packets do not follow same path to reach destination.







Difference between Connection-oriented and Connection-less Services:

S.NOConnection-oriented ServiceConnection-less Service
1.Connection-oriented service is related to the telephone system.Connection-less service is related to the postal system.
2.Connection-oriented service is preferred by long and steady communication.Connection-less Service is preferred by bursty communication.
3.Connection-oriented Service is necessary.Connection-less Service is not compulsory.
4.Connection-oriented Service is feasible.Connection-less Service is not feasible.
5.In connection-oriented Service, Congestion is not possible.In connection-less Service, Congestion is possible.
6.Connection-oriented Service gives the guarantee of reliability.Connection-less Service does not give the guarantee of reliability.
7.In connection-oriented Service, Packets follow the same route.In connection-less Service, Packets do not follow the same route.
8.Connection-oriented Services requires a bandwidth of high range.Connection-less Service requires a bandwidth of low range.

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