Advanced Control Suite for the AT-2931SX Adapter User’s Guide
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VLANs Overview
VLANs allow you to split your physical LAN into logical subparts, to create
logical segmentation of workgroups, and to enforce security policies
among each logical segment. Each defined VLAN behaves as its own
separate network, with its traffic and broadcasts isolated from the others,
increasing bandwidth efficiency within each logical group. Up to 64 VLANs
(63 tagged and 1 untagged) can be defined for each AT-2931 adapter in
your server, depending on the amount of available memory in your
system.
Although VLANs are commonly used to create individual broadcast
domains and/or separate IP subnets, it is sometimes useful for a server to
have a presence on more than one VLAN simultaneously. The
AT-2931SX adapters support multiple VLANs on a per-port or per-team
basis, allowing very flexible network configurations.
Figure 14. Example of Servers Supporting Multiple VLANs with Tagging
Shared Media Segment
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Accounting
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PC 1
Software Dept.
PC 2
Software Dept.
PC 3
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PC 5
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/Software
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VLAN 1
VLAN 2
VLAN 3
Main Server
(All VLANs)
AT-2931SX Gigabit
VLAN Tagged
