Design 2: Maximizing Layer 3 with Catalyst 8500 Switching Routers This section presents Design 2, an approach that relies on Catalyst 8500-style hardware-based routing (in other words, the 8500 is a switching router). Figure 17-6 illustrates Design 2. Figure 17-6. Design 2 Network Diagram Several differences from the physical layout used in Design 1 are important. First, … [Read more...]
Why Trunks?
Why Trunks? When all of the Catalysts in a network support one VLAN and need connectivity, you can establish links between the Catalysts to transport intra-VLAN traffic. One approach to interconnecting Catalysts uses links dedicated to individual VLANs. For example, the network in Figure 8-1 connects several Catalysts together. All of the Catalyst configurations include only … [Read more...]