What is the most common method of configuring inter-VLAN routing on a layer 3 switch?

SVIs
The modern method is Inter-VLAN routing on a Layer 3 switch using SVIs. The SVI is created for a VLAN that exists on the switch. The SVI performs the same functions for the VLAN as a router interface.

Can layer 3 switch route between VLANs?

For the switch to be able to route between the VLANs, the VLAN interfaces must be configured with an IP address. The no switchport command makes the interface Layer 3 capable. The IP address is in the same subnet as the default router.

What are the advantages of inter-VLAN routing using Layer 3 switches?

Layer 3 switches have the ability to perform some of the functions of a router while maintaining the capacity to perform layer 2 switching. Multi-layer switches support dynamic routing and inter-VLAN routing. One of the main advantages of using multi-layer switching is the ability to scale at a rapid pace.

Do you need a router for inter-VLAN routing?

Subinterfaces are configured in software on a router. Each subinterface is independently configured with an IP address and VLAN assignment. Subinterfaces are configured for different subnets that correspond to their VLAN assignment. This facilitates logical routing.

Can Layer 3 switch Do NAT?

From a software perspective, layer 3 switches are not capable of the extra services that routers typically provide, such as NAT and NetFlow.

How do I configure a Layer 3 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.

Is a VLAN Layer 2 or 3?

VLANs are data link layer (OSI layer 2) constructs, analogous to Internet Protocol (IP) subnets, which are network layer (OSI layer 3) constructs.

Can a Layer 2 switch Ping?

All devices in the Layer 2 path must be mutually reachable. To verify the ping connectivity you need to use the IP address that the CDP advertises on its Layer 2 interfaces. that is not in the Layer 2 path from the source device to the destination device. All devices in the path must be reachable from this switch.

Is SVI a Layer 3?

There is no physical interface for the VLAN and the SVI provides the Layer 3 processing for packets from all switch ports associated with the VLAN.

What is the VLAN IP address?

Same thing, the VLANs IP address is a Switch Virtual Interface (commonly called a SVI), in essense it is an interface (albeit logical) and plays the same role as a routers interface which has an IP address. It provides a gateway for inter-VLAN or inter-routing traffic.

How do you communicate two different VLANs without a router?

In order to perform communication between two different vlans we require a router or mls. But it is possible to provide communication between two different vlans without using any layer 3 device. This concept is based upon tagging / untagging frames.

Can a layer 3 switch replace a router?

All in all, it is not recommended to replace a router with layer 3 switch, but you can apply them in the same network at the same time. However, those switches are costly, and most layer 3 switches just have Ethernet ports. In this way, a dedicated router is cost-effective than a layer 3 switch.

How useful is a layer 3 switch for network routing?

Support routing between virtual LANs.

What is VLAN routing?

In a LAN environment, VLANs divide broadcast domains. When a host in one VLAN must communicate with a host in another VLAN, the traffic must be routed between them. This type of routing is called inter-VLAN routing.

What is a layer 3 switch?

A Layer 3 switch is a specialized hardware device used in network routing. Layer 3 switches technically have a lot in common with typical routers, and not just in physical appearance.