Network coverage areas Wide Area Networks( WANs) Span large areas(countries, continents, world) Use leased phone lines(expensive!) 1980s:10Kbps,2000s:25Gbps User access rates: 56Kbps-155 Mbps typical Shared comm links: switches and routers E.g, IBM SNA, X 25 networks, Internet Local Area Networks(LANS) Span office or building Single hop(shared channel)(cheap User rates: 10 Mbps-1 Gbps E.g. Ethernet, Token rings apple-talk Metro Area networkS MANS) Storage area networksNetwork coverage areas • Wide Area Networks (WANS) – Spa n large areas (countries, continents, world) – Use leased phone lines (expensive!) 1980’s: 10 Kbps, 2000’s: 2.5 Gbps User access rates: 56Kbps – 155 Mbps typical – Shared comm links: switches and routers E.g, IBM SNA, X.25 networks, Internet • Local Area Networks (LANS) – Spa n office or building – Single hop (shared channel) (cheap!) – User rates: 10 Mbps – 1 Gbps E.g., Ethernet, Token rings, Apple-talk • Metro Area networks (MANS) • Storage area networks Eytan Modiano Slide 7