Relationship with oTher courses( Relationship with other Courses(2) pp Dev Practic Chapter 1: Introduction Chapter 1: Introduction Chapter goal: Network basics Network basics TCP/IP protocols stack TCP/IP protocols stack review review Client-server application Client-server application model and software design model and software design a Concurrent processing in a Concurrent processing in client-server model client-server model What's the Internet:"nuts and What's the Internet:"nuts and bolts" view bolts"view millions of connected workstation otocols: control sending receiving of msgs e/s e.g.,tcp, Ip, Http. Ftp mobile 國 Internet:"network of networks" loosely hierarchical satellite RFC: Request for comments routers: forward packets IETF: Internet Engineeri (chunks)of data thru Task Force company network2 哈工大计算机学院 李全龙 Network Application Development 1: Introduction 7 Relationship with other Courses(2) Physical Data Link Network Transport Session Presentation Application Computer Net Net App Dev Net Planning &Implementation 哈工大计算机学院 李全龙 Network Application Development 1: Introduction 8 Relationship with other Courses(2) Concept&Theory Typical Net&Prot App Dev & Practice Computer Net Net App Dev Net Planning &Implementation 哈工大计算机学院 李全龙 Network Application Development 1: Introduction 9 Chapter 1: Introduction Chapter goal: „ Network basics „ TCP/IP protocols stack review „ Client-server application model and software design „ Concurrent processing in client-server model 哈工大计算机学院 李全龙 Network Application Development 1: Introduction 10 Chapter 1: Introduction Chapter goal: „ Network basics „ TCP/IP protocols stack review „ Client-server application model and software design „ Concurrent processing in client-server model 哈工大计算机学院 李全龙 Network Application Development 1: Introduction 11 What’s the Internet: “nuts and bolts” view „ millions of connected computing devices: hosts, end-systems „ pc’s workstations, servers „ PDA’s phones, toasters running network apps „ communication links „ fiber, copper, radio, satellite „ routers: forward packets (chunks) of data thru network local ISP company network regional ISP router workstation server mobile 哈工大计算机学院 李全龙 Network Application Development 1: Introduction 12 What’s the Internet: “nuts and bolts” view „ protocols: control sending, receiving of msgs „ e.g., TCP, IP, HTTP, FTP, PPP „ Internet: “network of networks” „ loosely hierarchical „ Internet standards „ RFC: Request for comments „ IETF: Internet Engineering Task Force local ISP company network regional ISP router workstation server mobile