• The Importance of Routing—Discusses how routing, and therefore Layer 3 switching, is the key to building large-scale networks that are stable and easy to manage.
• Router-on-a-Stick—This section explores the use of traditional router platforms for inter-VLAN routing. As the earliest form of Layer 3 switching, this approach can use either multiple interfaces or a single interface configured for a trunking protocol such as ISL or 802.1Q.
• The RSM—Cisco’s route-switch module was a natural evolution of the router-on-a-stick approach by bringing the routing function ...
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