• SonicOS 7.1
• About SonicOS
  • Working with SonicOS
  • SonicOS Workflow
  • How to Use the SonicOS Administration Guides
  • Guide Conventions
• About Switch Network
  • Before Adding a Switch
  • Enabling the Switch
  • Setting Up Ports
  • Checking Switch Details
• Managing from a Firewall
  • Adding a Switch to a Firewall with Zero-Touch
  • Adding a Switch to a Firewall Manually
  • Changing the Switch Configuration
  • Upgrading Firmware
  • Shutting Down the Switch
  • Restarting the Switch
  • Setting Up PoE
  • Adding a VLAN
  • Adding Static Routes
  • Editing DNS
  • Setting Up QoS
  • Setting Up Users
  • Setting Up 802.1X Authentication
  • Daisy-Chaining Switches
  • Connecting Access Points
  • Modifying the MAC Address Table
  • Checking Port Statistics
• Configuring Switch Topologies
  • Configuring Basic Topologies
  • Connecting the Switch Management Port to a Firewall
  • Configuring a Common Uplink
  • Configuring a Dedicated Uplink
  • Configuring a Hybrid System with Common and Dedicated Uplinks
  • Configuring Isolated Links for Management and Data Uplinks
  • Configuring High Availability
    • Configuring HA and PortShields With Dedicated Uplinks
    • Configuring HA and PortShield With a Common Uplink
    • Configuring HA Using One Switch Management Port
    • Configuring HA Using Two Switch Management Ports
  • Configuring VLANs With Dedicated Uplinks
  • Configuring a Link to SonicWall Access Points
• SonicWall Support
  • About This Document

Adding a VLAN

A Virtual LAN (VLAN) is a group of ports that form a logical Ethernet segment on a Layer 2 Switch to provide better administration, security, and management of traffic. A VLAN is a network topology configured according to a logical scheme rather than a physical layout. When you use a VLAN, users can be grouped by logical function instead of physical location. All ports that frequently communicate with each other are assigned to the same VLAN, regardless of where their location in the network. VLANs let you logically segment your network into different broadcast domains allowing the grouping of ports with related functions into their own separate, logical LAN segments on the same Switch. This allows broadcast packets to be forwarded only between ports within the VLAN, thus avoiding broadcast packets being sent to all the ports on a single Switch. A VLAN also increases network performance by limiting broadcasts to a smaller, more manageable logical broadcast domain. By limiting traffic to specific broadcast domains, VLANs improve security.

Each VLAN in a network has an associated VLAN ID, which appears in the IEEE 802.1Q tag in the Layer 2 header of packets transmitted on a VLAN. The IEEE802.1Q specification establishes a standard method for tagging Ethernet frames with VLAN membership information. The key for IEEE802.1Q to perform its functions is in its tags. 802.1Q-compliant Switch ports can be configured to transmit tagged or untagged frames. A tag field containing VLAN information can be inserted into an Ethernet frame. When using 802.1Q VLAN configuration, you configure ports to be a part of a VLAN group. When a port receives data tagged for a VLAN group, the data is discarded unless the port is a member of the VLAN group.

To change the Reserved VLAN range on the firewall, do so before adding the SonicWall Switch. If the Reserved VLAN range changes after connecting the Switch, then the Switch must be removed and re-added.

Adding a VLAN Interface

Add a VLAN by adding a virtual interface under the uplink to the firewall.

1. Navigate to DEVICE > Switch Network > Switches > Network.

2. Click on Add Network.

   

3. Define VLAN ID, Address, Subnet Mask and choose address assignment method: Static or DHCP.
4. Click on OK.

Configuring Voice VLAN

Voice VLANs can be enabled/disabled per port in the DEVICE > Switch Network > Switches > Voice VLAN display.

1. To configure a voice VLANs navigate to DEVICE > Switch Network > Switches and then click on Voice VLAN.

   

2. Set up a voice VLAN by moving the state from Disabled to Auto and set the other parameters before clicking on Accept as it appears at the bottom of the display.

   • Voice Vlan ID — identifies LAN.
   • Voice Priority Tag — determines priority among active voice streams.
   • Differentiated Service Code Point — defines QoS.

Use the Voice VLAN Settings to enable Voice traffic management and determine if Class of Service (CoS) queues will be defined for all ports or only those sourcing voice traffic. For more on CoS definition, see Setting Up QoS.

The Switch remarks incoming voice VLAN traffic tags for voice priority and DSCP as defined by these settings.

To Enable/Disable Voice VLAN from the Physical View

Go to DEVICE > Switch Network > Overview and click on the port. When the sideband display appears, scroll to Voice VLAN state as shown below.