ocal Area Network and Ethernet Dan li CS Department, Tsinghua University 2021/2/9 1
Local Area Network and Ethernet 2021/2/9 1 Dan LI CS Department, Tsinghua University
Today's Lecture MAC (Medium Access Control) Ethernet Bridges and Lan switches Reading list 2021/2/9
Today’s Lecture MAC (Medium Access Control) Ethernet Bridges and LAN switches Reading list 2021/2/9 2
Problem 1-Sharing a Wire two hosts share a wire one to send The other to receive and wait to send s But what if we want more hosts? 2021/2/9
Problem 1 – Sharing a Wire Two hosts share a wire One to send The other to receive and wait to send … But what if we want more hosts? 2021/2/9 3
Problem 1-Sharing a Wire Wires for everybody Switches Expensive! Can we share a wire? 2021/2/9
Problem 1 – Sharing a Wire 2021/2/9 4 Expensive! Can we share a wire? Switches Wires for everybody!
Problem 2-Listen and talk yak yak w Natural scheme- listen before you talk k Works well in practice 2021/2/9
Problem 2 – Listen and Talk Natural scheme – listen before you talk… Works well in practice yak yak… 2021/2/9 5