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.NO | Connection-oriented Service | Connection-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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