1 Chapter 1 – Introduction to WANs CCNA Exploration 4.0 Học viện mạng Bach Khoa - Website: www.bkacad.com 2 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 Học viện mạng Bach Khoa - Website: www.bkacad.com 3 A Growing Business and Its Network Học viện mạng Bach Khoa - Website: www.bkacad.com 4 A Growing Business and Its Network Học viện mạng Bach Khoa - Website: www.bkacad.com 5 A Growing Business and Its Network Học viện mạng Bach Khoa - Website: www.bkacad.com 6 A Growing Business and Its Network Học viện mạng Bach Khoa - Website: www.bkacad.com 7 The Hierarchical Network Model Học viện mạng Bach Khoa - Website: www.bkacad.com 8 Cisco Enterprise Architecture Học viện mạng Bach Khoa - Website: www.bkacad.com 9 The Enterprise Architecture Học viện mạng Bach Khoa - Website: www.bkacad.com 10 The Topology [...]... www.bkacad.com 11 WAN Physical Layer Concepts Học viện mạng Bach Khoa - Website: www.bkacad.com 12 WAN Devices Học viện mạng Bach Khoa - Website: www.bkacad.com 13 WAN Physical Layer Standards Học viện mạng Bach Khoa - Website: www.bkacad.com 14 WAN Physical Layer Concepts Học viện mạng Bach Khoa - Website: www.bkacad.com 15 WAN Data Link Layer Concept Học viện mạng Bach Khoa - Website: www.bkacad.com 16 WAN... connections called VPN tunnels, which are routed through the Internet from the private network of the company to the remote site or employee host VPN Benefits – Cost savings – Security – Scalability – Compatibility with broadband technology Học viện mạng Bach Khoa - Website: www.bkacad.com 31 Internet Connection Options Học viện mạng Bach Khoa - Website: www.bkacad.com 32 Internet Connection Options... Website: www.bkacad.com 17 WAN Switching Concepts Học viện mạng Bach Khoa - Website: www.bkacad.com 18 WAN Switching Concepts Học viện mạng Bach Khoa - Website: www.bkacad.com 19 WAN Link Connection Options Học viện mạng Bach Khoa - Website: www.bkacad.com 20 Dedicated Connection Link Options Leased Lines • When permanent dedicated connections are required, a point -to- point link is used to provide a pre-established... required, a point -to- point link is used to provide a pre-established WAN communications path from the customer premises through the provider network to a remote destination Point -to- point lines are usually leased from a carrier and are called leased lines Học viện mạng Bach Khoa - Website: www.bkacad.com 21 Dedicated Connection Link Options Line Types and Bandwidth Học viện mạng Bach Khoa - Website: www.bkacad.com... • Metro Ethernet is a rapidly maturing networking technology that broadens Ethernet to the public networks run by telecommunications companies • IP-aware Ethernet switches enable service providers to offer enterprises converged voice, data, and video services such as IP telephony, video streaming, imaging, and data storage Benefits of Metro Ethernet include: • Reduced expenses and administration • Easy . 1 Chapter 1 – Introduction to WANs CCNA Exploration 4.0 Học viện mạng Bach Khoa - Website:. www.bkacad.com 10 The Topology Học viện mạng Bach Khoa - Website: www.bkacad.com 11 WAN Technology Overview Học viện mạng Bach Khoa - Website: www.bkacad.com 12