I Recap: Internets Elements of an Internet Computers connected to the internet are called hosts Both servers and client pcs are hosts Routers connect the networks of the internet together In contrast switches forward frames within individual networks Router Router LAN WAN LAN Client Pc host Server Host 66 LAN WAN LAN Recap: Internets • Elements of an Internet – Computers connected to the internet are called hosts • Both servers and client PCs are hosts – Routers connect the networks of the internet together • In contrast, switches forward frames within individual networks Router Client PC Host Server Host Router