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Computer network
This document discusses different types of switching techniques used in internetworks. It describes circuit switching and packet switching as the two broad categories of switching. Circuit switching establishes a dedicated communications channel between two stations in three phases: establish, transfer, and disconnect. Packet switching can use either a datagram or virtual circuit approach. The datagram approach treats each packet independently by routing them from source to destination. The virtual circuit approach pre-plans a route for packets to follow from source to destination. The document also discusses IP addressing methods and different classes of IP addresses including Class A, B, C, and D. It describes an activity for students to discuss the drawbacks of each IP address class.
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Computer network
- 1. Internetworks-Circuit switching network • Providea common method of routing information packets between the networks. V.Parthipan Assistant Professor/CSE Saveetha University
- 2. Switching can bedivided into two broad categories. Switching Packet switching Circuit switching Datagram approach Virtual circuit approach
- 3. Circuit switching • Establisha dedicated communications channel.
- 4.
- 5. Circuit Switching • Dedicatedcommunication path between two stations • Three phases – Establish – Transfer – Disconnect
- 6. Activity -1 POGIL –Students search and give the solution about switching techniques available for digital traffic.
- 7. Packet Switching Networks •Datagram • Virtual circuit
- 8. Datagram Approach • Each packetis treated independently of all other packets. • Diagram shows how the datagram approach can be used to deliver four packets from station A to Station B.
- 9. Virtual Circuit • Apreplanned route is established before any packets are sent, then all packets follow the same route. • A route between stations is set up prior to data transfer. • All the data packets then follow the same route. • But there is no dedicated resources reserved for the virtual circuit! Packets need to be stored-and-forwarded
- 10. Activity -3 Scale up–Students focus on searching the differences of packet switching networks and circuit switching networks.
- 11. IP addressing Methods TheIP address is a 32-bit address.
- 12. IP address classifiedin different class . • CLASS A • CLASS B • Class C • Class D • Class E
- 13. Activity -3 Scale-Up: 4Groups of students, Each group discusses about the 4 different Classes(A,B,C & D) of IP address and list out the drawbacks of each and every IP address classes.