Computer Networking g Lecture 7-ethernet Dejian Ye Software school Fudan University
1 Computer Networking Lecture 7 - Ethernet Dejian Ye Software School Fudan University
Problem: Sharing a Wire Learned how to connect hosts But what if we want more hosts? Switches Wires for everybody! Expensive! How can we share a wire? 早早?早 2
2 Problem: Sharing a Wire … But what if we want more hosts? Expensive! How can we share a wire? Switches Wires for everybody! Learned how to connect hosts
Listen and talk yak yak Natural scheme- listen before you talk >Works well in practice 3
3 3 Listen and Talk Natural scheme – listen before you talk… »Works well in practice yak yak…
Listen and talk yada yada. Natural scheme- listen before you talk >Works well in practice
4 4 Listen and Talk Natural scheme – listen before you talk… »Works well in practice yada yada…
Listen and talk yak yak Natural scheme listen before you talk >Works well in practice But sometimes this breaks down )Why How do we fix/prevent this? 5
5 5 Listen and Talk Natural scheme – listen before you talk… »Works well in practice But sometimes this breaks down »Why? How do we fix/prevent this? yada yada… yak yak…