Vlan

Virtual Local Area Network

Virtual Linked Area Network

Virtual Large Area Network

Virtual Limited Area Network

Unlimited

2 only

10 only

50 only

The purpose of VLAN 1 is to serve as the default VLAN on a switch and is often used for management traffic.

The purpose of VLAN 1 is to NOT serve as the default VLAN on a switch and is often used for management traffic.

Layer 7

Layer 1

Layer 3

Layer 2

access

empty

short

enable

configure terminal

configure terminel

canfigure terminal

configure tarminal

A VLAN (Virtual Local Area Network) is a subnetwork that can group together devices from different physical LANs.

A VLAN (Virtual Local Area Network) is NOT a subnetwork that can group together devices from different physical LANs.

Improved Performance

Displayed

Security

Management

Assign Ports: Assign switch ports to specific VLANs.

Create VLANs: Define VLAN IDs on network switches.

Routing Between VLANs: Use a Layer 1 device (router or Layer 3 switch) for inter-VLAN routing.

Routing Between VLANs: Use a Layer 3 device (router or Layer 3 switch) for inter-VLAN routing.

Switch> enable
Switch# configure terminal

# Create VLAN 10

Switch(config)# vlan 10
Switch(config-vlan)# name Sales

# Assign ports to VLAN 10

Switch(config)# interface range fastethernet 0/1 - 12
Switch(config-if-range)# switchport mode access
Switch(config-if-range)# switchport access vlan 10

# Create VLAN 20

Switch(config)# vlan 20
Switch(config-vlan)# name Staff

# Assign ports to VLAN 20

Switch(config)# interface range fastethernet 0/13 - 24
Switch(config-if-range)# switchport mode access
Switch(config-if-range)# switchport access vlan 20

# Create VLAN 20

Switch(config)# vlan 20
Switch(config-vlan)# name HR

# Assign ports to VLAN 20

Switch(config)# interface range fastethernet 0/13 - 24
Switch(config-if-range)# switchport mode access
Switch(config-if-range)# switchport access vlan 20

# Create VLAN 40

Switch(config)# vlan 40
Switch(config-vlan)# name Sales

# Assign ports to VLAN 40

Switch(config)# interface range fastethernet 0/1 - 12
Switch(config-if-range)# switchport mode access
Switch(config-if-range)# switchport access vlan 40