What's the Internet:"nuts and bolts"view protocols control sending, router workstation receiving of msgs 目server e.g.,TCP,IP,HTTP,FTP PPP mobile Internet:"network of networks" loosely hierarchical public Internet versus regionaSP private intranet ▣Internet standards RFC:Reguest for comments IETF:Internet Engineering Task Force company network Introduction 1-6Introduction 1-6 What’s the Internet: “nuts and bolts” view q protocols control sending, receiving of msgs v e.g., TCP, IP, HTTP, FTP, PPP q Internet: “network of networks” v loosely hierarchical v public Internet versus private intranet q Internet standards v RFC: Request for comments v IETF: Internet Engineering Task Force local ISP company network regional ISP router workstation server mobile