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Connection oriented and connectionless service.

written 8.4 years ago by teamques10 ★ 68k

modified 2.8 years ago by pedsangini276 • 4.8k

Mumbai University > Information Technology > Sem4 > Computer Networks

Marks: 5M

Year: May 2014

computer networks

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written 8.4 years ago by teamques10 ★ 68k

Sr.No	Parameters	Connection Oriented Service	Connectionless Service
1.	Network	If connection-oriented service is used, a path from the source router all the way to the destination router must be established before any data packets can be sent. This connection is called a VC (virtual circuit), in analogy with the physical circuits set up by the telephone system, and the network is called a virtual-circuit network.,Connection-oriented service is modeled after the telephone system.	If connectionless service is offered, packets are injected into the network individually and routed independently of each other.,In this context, the packets are frequently called datagrams (in analogy with telegrams) and the network is called a datagram network.,Connectionless service is modeled after the postal system.
2.	Reservation of Resources	Yes	No
3.	Utilization of Resources	Less (Statiscal Based)	Good
4.	State Information	Large information is required (path sequential arrangement, delivery status)	Less information is required (destination address)
5.	Guaranteed Service	Yes (re-transmission)	No
6.	Delays	More (require to want for connection)	Less
7.	Overheads in Header of packet	Less	More
8.	Packet Travel	Sequentially	Randomly
9.	Congestion due to overloading	Not possible	High Possibility

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