Contributing

What is Cisco Layer 3 switch?

by Minnie

What is Cisco Layer 3 switch?

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.

Can a switch operate at layer 3?

In short, a layer 3 switch can implement both switching as well as routing function. It can define a plurality of ports as one virtual network, and it has no limit to the transmission bandwidth between networks.

How do I enable layer 3 on a Cisco switch?

Configuring the Layer 3 Interfaces

  1. Navigate to the Distribution Switch’s details page from Monitor > Switches.
  2. Click Initialize layer 3 under the Status section.
  3. Enter the following settings: Name: Uplink. Subnet: 192.168. 128.0/24. Interface IP: 192.168. 128.1. VLAN: 20. Default Gateway: 192.168. 128.254.
  4. Click Save.

Can Layer 3 switch Do NAT?

2 Answers. As you already know, a layer 3 switch includes a basic router. If the device has the functionality you need, then it should be fine to use. For instance, a layer 3 switch generally won’t do NAT or have ports suitable for connection to a WAN.

How can you tell if a switch is Layer 2 or layer 3?

Layer 2 switch does simple switching by finding and maintain a table of MAC addresses. Layer 3 switch is a specialized device that is designed for routing of data packets through IP addresses.

How do I convert SVI to Layer 3 switch?

Layer 3 Switch Configuration (4.3. 3)

  1. Create the VLANs. First, create the two VLANs as shown in Example 4-13.
  2. Create the SVI VLAN interfaces. Configure the SVI for VLANs 10 and 20, as shown in Example 4-14.
  3. Configure access ports.
  4. Enable IP routing.

Can a Layer 2 switch use VLANs?

You can configure one or more VLANs to perform Layer 2 bridging. Thus, each virtual switch can participate in a different Layer 2 network. VLANs provide support for a Layer 2 trunk port. A Layer 2 trunk interface enables you to configure a single logical interface to represent multiple VLANs on a physical interface.