06 Oct 2022
- At the destination packets belonging to the same file have to be reassembled
- packet switching uses Store and Forward technique → packet switches must receive a packet in its entirety before forwarding to the next switch in the network.
- Packet-Switched networks were designed to overcome the weaknesses of circuit-switched networks since circuit-switched networks were not very effective for small messages.
Advantages
- more reliable thanks to Store and Forward
- more fault tolerant ← packets may follow different path in case a link is down
- cheaper to implement
Disadvantages
- doesn’t give packets in order → need to provide sequence numbers for each packet
- beneficial only for small messages, circuit switching better for large data