What type of devices do you need to move between the VLANs?
A router will perform the routing function necessary for two hosts on different networks to speak to one another. In the same way, a Router is what we will need in order for hosts in different VLANs to communicate with one another.
How is data forwarded on a network from one VLAN to another?
Connectivity between VLANs LAN switches forward frames based on Layer 2 logic. This means that, when a switch receives an Ethernet frame, it looks at the destination MAC address and forwards the frame out another interface or multiple interfaces if it is a BUM frame.
Where does inter-VLAN routing need to take place?
This is where inter-VLAN routing is necessary. As we have learned, a VLAN breaks up a physical layer 2 network into multiple, logical layer 2 networks. In order to move between these layer 2 networks, this traffic needs to be routed at layer 3.
How do I create a VLAN in switch?
Go to the switch’s CLI to type in the commands: The commands in your CLI should look like this: Or, if you’re not up to it, you can simply use the GUI to create the VLANs (and still see the commands run as they are being executed below). Go to the Config-VLAN Database menu and ADD the VLANs by entering their numbers (10,20) and names (ACCT, LOGS).
What is the difference between a LAN and a VLAN?
A Virtual Local Area Network or VLAN is a way of partitioning computers on a network into cluster groups that serve a common business purpose. The LAN part indicates that we are partitioning physical hardware while the virtual part indicates we are using logic to accomplish it.
Can a VLAN trunk be used for more than one switch?
Now that you have an understanding of the purpose of VLANs, the next skill to acquire is the understanding of VLAN trunks. Large networks often contain more than one switch. And if you want to span virtual LANs across two or more switches, a VLAN trunk can be used.