System Overview
QB.11-R Installation and Management
Virtual Local Area Networks (VLANs)
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Virtual Local Area Networks (VLANs)
Virtual Local Area Networks (VLANs) are logical groupings of network hosts. Defined by software settings, other VLAN
members or resources appear (to connected hosts) to be on the same physical segment, no matter where they are
attached on the logical LAN or WAN segment. They simplify allowing traffic to flow between hosts and their frequently-
used or restricted resources according to the VLAN configuration.
Tsunami QuickBridge.11 units are fully VLAN-ready; however, by default, VLAN support is disabled. Before enabling
VLAN support, certain network settings should be configured and network resources such as VLAN-aware switches
should be available, dependent upon the type of configuration.
VLANs are used to conveniently, efficiently, and easily manage your network in the following ways:
• Manage VLAN configuration from a single window
• Define groups
• Reduce broadcast and multicast traffic to unnecessary destinations
–
Improve network performance and reduce latency
• Increase security
–
Secure network restricts members to resources on their own VLAN
VLAN tagged data is collected and distributed through a unit’s Ethernet interface. The units can communicate across a
VLAN-capable switch that analyzes VLAN-tagged packet headers and directs traffic to the appropriate ports when the
units are working in their Transparent mode.
VLAN features can be managed via:
• The BSU’s Web interface
• The Command Line Interface (see “Command Line Interface” in the
Tsunami QuickBridge.11 Reference
)
• SNMP (see the MIBs provided on the product CD)
For more information about VLAN configuration, see
VLAN Parameters (BSU Only; Bridge Mode Only)
.
