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1.Connect devices that are separated by a broader geographical area. 2.Use the services of carriers, such as telephone companies, network providers 3.Use serial connections.A VPN is an encrypted connection between private networks over a public network such as the Internet. Instead of using a dedicated Layer 2 connection such as a leased line, a VPN uses virtual connections called VPN tunnels, which are routed through the Internet from the private network of the company to the remote site or employee host.Metro Ethernet is a rapidly maturing networking technology that broadens Ethernet to the public networks run by telecommunications companies. •IP-aware Ethernet switches enable. | Chapter 1 - Introduction to WANs miiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii BACHKHOA NETWORKING ACADEMY CCNA Exploration 4.0 CISCO 1 What is a WAN Here are the three major characteristics of WANs 1. Connect devices that are separated by a broader geographical area. 2. Use the services of carriers such as telephone companies network providers. 3. Use serial connections Wide Area Network Học viện mạng Bach Khoa - Website www.bkacad.com 2 A Growing Business and Its Network Internet Small single LAN for sharing peripherals and Internet access A Growing Business and Its Network Broadband Access to Internet Small Office Few Employees Học viện mạng Bach Khoa - Website www.bkacad.com
