Comparison of Datagram and Virtual Circuit Subnet

Posted By on September 22, 2014


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Hamming Code
Comparison between Connection-oriented and Connectionless Communication

Comparison of Datagram and Virtual Circuit Subnet

    Issue                                                           Datagram                                                 Virtual Circuit

Connection Setup None Required
Addressing Packet contains full source and destination address Packet contains short virtual circuit number identifier.
State information None other than router table containing destination network Each virtual circuit number entered to table on setup, used for routing.
Routing Packets routed independently Route established at setup, all packets follow same route.
Effect of router failure Only on packets lost during crash All virtual circuits passing through failed router terminated.
Congestion control Difficult since all packets routed independently router resource requirements can vary. Simple by pre-allocating enough buffers to each virtual circuit at setup, since maximum number of circuits fixed.
Hamming Code
Comparison between Connection-oriented and Connectionless Communication

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Posted by Akash Kurup

Founder and C.E.O, World4Engineers Educationist and Entrepreneur by passion. Orator and blogger by hobby

Website: http://world4engineers.com