Summary
In this chapter, you learned about the important issues involved in providing WAN connectivity between geographically separated network locations as well as about the different kinds of WAN connections, including point-to-point connections, circuit-switched service provider networks, and packet-switched service provider networks.
You also became aware of the impacts different transmission media and different distance parameters have on WAN connections. In addition, you learned about the choices for leased-line connections along with broadband technologies like xDSL and cable modems.
You studied the different WAN protocols and technologies used in connecting today’s high-speed WANs, including ISDN, Frame Relay, ATM, and MPLS, and were equipped with helpful strategies to troubleshoot and solve common WAN connection issues.
