摘要：Unit2: Transport 学习目标： 1. how TCP set up a connection 2. what TCP segment looks like 3. how can TCP be in high performance 4. detect errors 5. Finite 阅读全文

摘要：Unit 1 学习目标： 1. how an application use the Internet 2. The structure of the Internet：The 4 layer model 3. The Internet protocol(IP) 4. Basic architect 阅读全文