"Segmentation brings clarity. VLANs bring control."

This project demonstrates VLAN Trunking in a multi-department setup using Cisco Packet Tracer. VLANs are used to logically segment a network, improve performance, and enhance security. Trunking enables VLAN communication across switches.

• Department 1 (MP) – VLAN 2
• Department 2 (Assam) – VLAN 3
• Department 3 (Delhi) – VLAN 4
• Department 4 (Haryana) – VLAN 5

• Two Switches (Switch2 and Switch3)
• End Devices connected to specific VLANs based on departments
• Trunk link between switches to carry multiple VLANs
• Server and Laptops for extended testing

enable
configure terminal
interface fa0/3
switchport mode access
switchport mode trunk

enable
configure terminal
vlan 2
name MP
vlan 3
name Assam
vlan 4
name Delhi
vlan 5
name Haryana

interface fa0/x
switchport mode access
switchport access vlan <vlan_id>

• VLANs created: 2 (MP), 3 (Assam), 4 (Delhi), 5 (Haryana)
• Ports mapped accordingly to VLANs

• Identical VLAN configuration to Switch2
• Consistent port-to-VLAN mapping

• VLAN Trunking allows multiple VLANs to be carried over a single physical link.
• Logical segmentation of network using VLANs reduces broadcast domains and improves security.
• Trunk ports must be configured on both sides to ensure VLAN data is correctly tagged and understood.

• Ensure VLAN IDs match across switches
• Verify trunk ports are correctly configured
• Use show vlan and show interface trunk commands for debugging

• Add Router-on-a-Stick to enable inter-VLAN routing
• Use VTP (VLAN Trunking Protocol) to propagate VLANs automatically
• Implement Port Security for enhanced control

"A well-segmented network is a well-managed network."

📡 Keep your network clean, controlled, and secure with VLANs!