Can a layer 3 switch route between VLANs?
The Layer 3 forwarding (routing) logic forwards IP packets between VLANs. Layer 3 switches typically support two configuration options to enable IPv4 routing inside the switch, specifically to enable IPv4 on switch interfaces.
How does a layer 3 switch forward packets?
Simply put, a layer 3 switch combines the functionality of a switch and a router. It acts as a switch to connect devices that are on the same subnet or virtual LAN at lightning speeds and has IP routing intelligence built into it to double up as a router.
How to configure a layer 3 switch?
On the Layer 3 switch, the trunking interface needs to be encapsulated with the dot1q protocol, however it is not necessary to specify VLAN numbers as it is when working with a router and subinterfaces. a. On MLS, configure interface g0/1. b. Make the interface a static trunk port. c. Specify the native VLAN as 99. d.
How to configure intervlan routing on Layer 3 Cisco switches?
If you need information on how to configure VLANs, access ports, and trunking on the 3550, refer to Creating Ethernet VLANs on Catalyst Switches for the specific Cisco IOS version you run on the switch. The information in this document is based on a Catalyst 3550-48 that runs Cisco IOS Software Release 12.2 (44)SE6 EMI.
Is the catalyst 3650 a layer 2 or Layer 3 switch?
A multilayer switch like the Cisco Catalyst 3650 is capable of both Layer 2 switching and Layer 3 routing. One of the advantages of using a multilayer switch is this dual functionality.
How to configure trunking on MLS layer 3 switch?
Step 3: Configure Trunking on MLS. Trunk configuration differs slightly on a Layer 3 switch. On the Layer 3 switch, the trunking interface needs to be encapsulated with the dot1q protocol, however it is not necessary to specify VLAN numbers as it is when working with a router and subinterfaces.