Users Guide

3–Virtual LANs in Windows

VLAN Overview

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Main Server A high-use server that needs to be accessed from all VLANs and IP

subnets. The Main Server has a Marvell adapter installed. All three

IP subnets are accessed through the single physical adapter inter-

face. The server is attached to one of the switch ports, which is con-

figured for VLANs #1, #2, and #3. Both the adapter and the

connected switch port have tagging turned on. Because of the tag-

ging VLAN capabilities of both devices, the server is able to com-

municate on all three IP subnets in this network, but continues to

maintain broadcast separation between all of them.

Accounting

Server

Available to VLAN #3 only. The Accounting Server is isolated from

all traffic on VLANs #1 and #2. The switch port connected to the

server has tagging turned off.

PCs #1 and #2 Attached to a shared media hub that is then connected to the

switch. PCs #1 and #2 belong only to VLAN #2, and are logically in

the same IP subnet as the Main Server and PC #5. The switch port

connected to this segment has tagging turned off.

PC #3 A member of VLAN #1, PC #3 can communicate only with the Main

Server and PC #5. Tagging is not enabled on PC #3 switch port.

PC #4 A member of VLAN #3, PC #4 can only communicate with the serv-

ers. Tagging is not enabled on PC #4 switch port.

PC #5 A member of both VLANs #1 and #2, PC #5 has a Marvell adapter

installed. It is connected to switch port #10. Both the adapter and

the switch port are configured for VLANs #1 and #2 and have tag-

ging enabled.

NOTE

VLAN tagging is only required to be enabled on switch ports that create

trunk links to other switches, or on ports connected to tag-capable

end-stations, such as servers or workstations with Marvell adapters.

For Hyper-V

, create VLANs in the vSwitch-to-VM connection instead of in a

team, to allow VM live migrations to occur without having to ensure the

future host system has a matching team VLAN setup.

Table 3-1. Example VLAN Network Topology (Continued)

Component Description