Wide Area Network (WAN) connections can interconnect geographically dispersed locations. However, what if you have lots of sites? If every site has to connect to every other site (i.e. a full mesh topology), you might have a design issue. This video illustrates a full mesh topology and gets a bit mathematical in a discussion of scalability limitations. Full Mesh Topology is a sample excerpted from Cisco CCENT ICND1 100-101 (Complete Video Course), a comprehensive, 17+ hour training course that brings Cisco CCENT exam topics to life through the use of real-world demonstrations, animations, live instruction, and configurations, making learning these foundational networking topics easy and fun.