P1

Fig. 11.5. Packet switching principle.

In Fig. 11.5, two packets (P1, P2) are entering at station A and B. The packet (P1) entering at A is targetted to the station H and the packet (P2) entering at B is targetted to the station G. Depends on the path availability the packet P1 choses the path as station A-C-E-H. Similarly the packet P2 choses the path as station B-C-D-G. In each station, the packets are stored in a buffer and forwarded to the next station after the availability.

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