Advantages of Packet Switching Line efficiency Single node-to-node link can be dynamically shared by many packets over time -Packets are queued up and transmitted as fast as possible Data rate conversion Each station connects to the local node at its own speed In circuit-switching, a connection could be blocked if there lacks free resources. on a packet-switching network even with heavy traffic, packets are still accepted by delivery delay increases Priorities can be used On each node, packets with higher priority can be forwarded first. They will experience less delay than lower-priority packets. 1212 Advantages of Packet Switching • Line efficiency — Single node-to-node link can be dynamically shared by many packets over time — Packets are queued up and transmitted as fast as possible • Data rate conversion — Each station connects to the local node at its own speed • In circuit-switching, a connection could be blocked if there lacks free resources. On a packet-switching network, even with heavy traffic, packets are still accepted, by delivery delay increases. • Priorities can be used — On each node, packets with higher priority can be forwarded first. They will experience less delay than lower-priority packets