Connection Oriented and Connectionless in Communication

Connection Oriented and Connectionless service (http://www.linktionary.com) 

Connection Oriented is communication mode in which connection is set up before data are transferred. As defined by Rouse (2018) that connection-oriented means data connections are established by the preliminary protocol before they are sent.  

Contrary, the connectionless has no set up for data transmission. Each data is transferred based on its information, addressed and routed.  As said by InetDaemon (2014) that “Connectionless means that no effort is made to set up a dedicated end-to-end connection.” Comparison of connection-oriented and connectionless are following: 

1.Advantages 

The advantages of Connection-Oriented and Connectionless services could be seen at Table below:

Advantages
Connection-Oriented	Connectionless
Established a session connection before data packages/frames can be sent	Every package is routed independently through the subnet
Guarantees that data will arrive in the same order as it was sent.	if something goes wrong on the subnet, no harm is done to the data which has already been sent.
The system works perfect in bi-directional communications environments	When there is little interference and plenty of speed available, then connectionless services will work very fine

The telephone network is an example of a connection-oriented service. The postal system is an example of a connectionless network service in daily life of real world. Some examples of connection-oriented packet mode communication are Asynchronous Transfer Mode, Connection-oriented Ethernet and DCCP. Some examples of a connectionless are Internet Protocol (IP), User Datagram Protocol (UDP) and Internet Control Message Protocol (ICMP).

2.Issues for both

Both connection-Oriented and Connectionless have issues (dis-advantages). The connection-Oriented introduces overhead and delays, which sometimes are undesirable. Moreover, Connectionless services sometimes will lose data due to damage in transit, it is because sender not ask receipt from the receiver.

However, I used both connection-Oriented and connectionless service in my daily life. I think to solve “delays and overhead” in the connection-Oriented service by storing the route to receiver. The other ways are to re-sequencing or to redial the services. Moreover, it is possible to solve the problem of “lose data due to damage in transit” in a connectionless network service by sending the data via a different route to the same destination.

The services, connection-oriented and connection-less have advantages and dis-advantages. The advantages could be seen at Table above (Discussion section). The connection-oriented is good for long distance, and connection-less service is good for short distance with small bandwidth.

The dis-advantages are slower for connection-oriented, and connection-less service is always not reliable as one of dis-advantages. Thus, both services are important for transferring data with their own advantages and dis-advantages.

References

InetDaemon. 2014. Connection Oriented vs. Connectionless. Retrieved from www.inetdaemon.com/tutorials/basic_concepts/communication/connection-oriented_vs_connectionless.shtml

Rouse, M. 2018. connection-oriented. Retrieved from http://searchnetworking.techtarget.com/definition/connection-oriented