Virtual Lans (Vlans) - Dell C9000 Series Networking Configuration Manual

Virtual LANs (VLANs) are a logical broadcast domain or logical grouping of interfaces in a local area network
(LAN) in which all data received is kept locally and broadcast to all members of the group.
When in Layer 2 mode, VLANs move traffic at wire speed and can span multiple devices. The system supports
up to 4093 port-based VLANs and one default VLAN, as specified in IEEE 802.1Q.
VLANs benefits include:
• Improved security because you can isolate groups of users into different VLANs
• Ability to create one VLAN across multiple devices
For more information about VLANs, refer to the IEEE Standard 802.1Q Virtual Bridged Local Area Networks. In
this guide, also refer to:
• Bulk Configuration in the
• VLAN Stacking in the Service Provider Bridging
For a complete listing of all VLAN configuration commands, refer to these Dell Networking OS Command
Reference Guide chapters:
• Interfaces
• 802.1X
• GARP VLAN Registration Protocol (GVRP)
• Service Provider Bridging
• Per-VLAN Spanning Tree Plus (PVST+)
The following table lists the defaults for VLANs in the system.
Feature Default
Spanning Tree All VLANs are part of Spanning Tree group 0.
group ID
Mode Layer 2 (no IP address is assigned).
Default VLAN ID VLAN 1
Topics:
• Default VLAN
• Port-Based VLANs
• VLANs and Port Tagging
• Configuration Task List

Virtual LANs (VLANs)

Interfaces chapter.
chapter.
60
Virtual LANs (VLANs) 1133