In a flat bridged network, a broadcast domain is confined to a single LAN segment or even a specific
physical location, such as a department or building floor. In a switch-based network, such as one
comprised of Alcatel switching systems, a broadcast domain-or VLAN- can span multiple physical
switches and can include ports from a variety of media types. For example, a single VLAN could span
three different switches located in different buildings and include 10/100 Ethernet, Gigabit Ethernet,
802.1q tagged ports and/or a link aggregate of ports.
In This Chapter
This chapter describes how to define and manage VLAN configurations through the Command Line Inter-
face (CLI). CLI commands are used in the configuration examples; for more details about the syntax of
commands, see the OmniSwitch CLI Reference Guide.
Configuration procedures described in this chapter include:
•
•
•
•
"Enabling/Disabling VLAN Authentication" on page
•
•
"Bridging VLANs Across Multiple Switches" on page
•
•
For information about statically and dynamically assigning switch ports to VLANs, see
"Assigning Ports to VLANs."
For information about defining VLAN rules that allow dynamic assignment of mobile ports to a VLAN,
see
Chapter 7, "Defining VLAN Rules."
For information about Spanning Tree, see
For information about routing, see
For information about Layer 2 VLAN authentication, see
VLANs."
OmniSwitch 6624/6648 Network Configuration Guide
4 Configuring VLANs
4-5.
4-11.
Chapter 5, "Configuring Spanning Tree Parameters."
Chapter 12, "Configuring IP."
4-6.
4-9.
4-10.
4-10.
4-14.
4-15.
Chapter 18, "Configuring Authenticated
April 2004
Chapter 6,
page 4-1