How to Configure VLAN on Cisco Switch : Step by Step
Learn how to configure VLAN on Cisco Switch step by step. VLAN creation, port assignment,
Access Switch VLAN ID
An access switch VLAN ID assigns a single VLAN to a switch port, allowing it to carry traffic for only that VLAN.
What is an Access VLAN
An access VLAN is a VLAN assigned to a switch port that connects to end devices like computers, printers, or IP phones. Traffic on an access port is untagged, and the switch automatically associates all incoming frames with the configured VLAN ID. Each access port can only belong to one VLAN at a time .
Configuring an Access VLAN
To configure an access VLAN on a switch port: On Cisco switches:
- Enter global configuration mode:
configure terminal - Select the interface:
interface GigabitEthernet1/0/1 - Set the port as an access port:
switchport mode access - Assign the VLAN ID:
switchport access vlan 20 - Verify configuration:
show vlan brieforshow running-configOn Aruba AOS-CX switches: - Enter interface configuration:
interface 1/1/2 - Assign the VLAN ID:
vlan access 20 - To remove the VLAN:
no vlan access 20orno vlan access
Key Points
- Single VLAN per access port: Access ports cannot carry multiple VLANs; for multiple VLANs, use a trunk port .
- Default VLAN: If no VLAN is assigned, the port defaults to VLAN 1 .
- Layer 2 only: Access VLANs are configured on non-routed (Layer 2) interfaces. Routed (Layer 3) interfaces cannot have access VLANs .
- Broadcast domain: Each VLAN represents a separate broadcast domain, isolating traffic between VLANs .
Best Practices
- Assign VLANs based on department or function (e.g., VLAN10 for Admin, VLAN20 for Finance) to simplify network management .
- Avoid mixing multiple subnets in a single VLAN; maintain a one VLAN per subnet rule .
- Use consistent VLAN IDs across switches to ensure proper connectivity and avoid misconfigurations. By following these steps, you can effectively segment your network, control broadcast domains, and ensure that each access port carries traffic for the intended VLAN only.
show vlan Explained – Output Fields, Port Assignment, VLAN Status
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Get-NetworkSwitchVlan (NetworkSwitchManager) | Microsoft Learn
Description The Get-NetworkSwitchVlan cmdlet gets available virtual local area networks (VLANs) for a network switch.
VLAN Switch Port Modes
Switch (config-if)#switchport mode access Switch (config-if)#switchport access vlan 10 Switch (config-if)#end The
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VLAN 0 and VLAN 4095: Reserved VLAN IDs are defined by IEEE 802.1Q and used internally for protocol operations and cannot be
How to configure and assign a Cisco switch access port to a VLAN
When configuring an access port, you also want to define which VLAN the port belongs to. To configure and assign a switch access
Configure VLANs on a Cisco Switch | ComputingForGeeks
Configure VLANs on a Cisco switch: create VLANs, assign access ports, add a voice VLAN, and verify with show vlan
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Dell X-series switch, how to change Access mode VLAN
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Configure Port to VLAN Interface Settings on a Switch through
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Learn how to configure VLANs on a Cisco switch using the command-line interface (CLI). This guide provides a step
Configuring VLANs
This article describes how to configure VLANs (Virtual Local Area Networks) on a Cisco switch and view the resulting output.
How To Configure VLANs On the Catalyst Switches
Introduction VLAN stands for Virtual Local Area Network one physical cisco switch; you can create multiple VLANs
switchport access vlan
Default A single VLAN interface is available (VLAN 1). Note If the port is in the trunk mode, this command will not alter the switchport
show vlan Explained – Output Fields, Port Assignment, VLAN Status
It displays every VLAN that exists on the switch — including its ID, name, operational status, and the list of access ports assigned to
vlan access
Only one VLAN ID can be assigned to each access interface. VLANs can only be assigned to non-routed (Layer 2) interfaces. All
VLAN Configuration Guide
VLAN ID range: Standard Ethernet (802.1Q) supports VLAN IDs from 1 to 4094. Switches typically support a subset of
Assign an Interface VLAN as an Access or Trunk Port on a Switch
Article ID:5306 Assign an Interface VLAN as an Access or Trunk Port on a Switch Objectives Virtual Local Area
Configure VLANs on a Cisco Switch | ComputingForGeeks
This guide shows how to configure VLANs on a Cisco switch: creating them, putting access ports into them, adding a
Lost access after to Switch after configuring VLANS
Hello all, I have acquired a Netgear GS108Ev3 Managed Switch, and after researching about VLANS, I was able to
Virtual Local Area Networks (VLANs)
Inter-VLAN routing requires the help of a VLAN supported router or a VLAN supported smart switch. To communicate to the Internet
vlan access
Description Creates an access interface and assigns an VLAN ID to it. Only one VLAN ID can be assigned to each access interface.
VLAN Configuration Commands Step by Step Explained
Keep one PC from each switch in a VLAN. Access the first switch''s CLI prompt. Enter global
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