Design Topology Diagrams Module 2 L1 sample topology L2 sample topology L3 sample topology Comparison of L1, L2, and L3 diagrams Core, Distribution, and Access tiers Collapsed core Two Access-Distribution blocks connected to the core North-south and east-west traffic Module 3 Cisco recommended loop-free switched topology Loop-free U topology Loop-free inverted-U topology Routed topology Switched vs routed topology Virtual switch topology Module 4 Generic multicast topology PIM topology
