![]() Step 3: Use the ‘show vlan’ command to verify that the VLANs exist in the VLAN database. Based on the network topology above, it is VLANs 10, VLAN 20, and VLAN 30. Step 2: Take note of the VLANs that must be routed. Even though this command is usually enabled, it does not hurt to be certain that it is. Step 1: Enable routing capability on the switch. In this simple Inter-VLAN routing scenario, we will be using a Cisco Catalyst 3550 as our Layer 3 Switch. How to Configure Layer 3 Switch InterVLAN Routing?īelow is a diagram that we can use as a reference in understanding how to configure Inter-VLAN routing and test inter-switch connectivity across the network before configuring its routing capability. Layer 3 switches convert a Layer 2 switch interface to a Layer 3 interface, making it a routed port similar to a physical interface on a Cisco IOS router. Cisco Catalyst 4500/4000 Series with Sup II+ or laterĪ Layer 3 Switch can route from one VLAN to another using multiple Switched Virtual Interface (SVI). ![]() Below are some of the Cisco Catalyst Series switches with Layer 3 functionalities: ![]() The latest Cisco Catalyst Switches are equipped with the Enhanced Multilayer Image (EMI), which can work as a Layer 3 device with full routing capabilities, also known as a multi-layer switch (MLS).
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