Example: Multiple Vlans With Tagging Adapters - Lenovo ThinkSystem NE2552E Application Manual

Example: Multiple VLANs with Tagging Adapters

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NE2552E Application Guide for ENOS 8.4
Figure 8. Multiple VLANs with VLAN‐Tagged Gigabit Adapters
Shared Media
PC #1
VLAN #2
The features of this VLAN are described in the following table:
Component Description
Switch This switch is configured for three VLANs that represent three
different IP subnets. Two servers and five clients are attached to
the switch.
Server #1 This server is a member of VLAN 3 and has presence in only one IP
subnet. The associated internal switch port is only a member of
VLAN 3, so tagging is disabled.
Server #2 This high‐use server needs to be accessed from all VLANs and IP
subnets. The server has a VLAN‐tagging adapter installed with
VLAN tagging turned on. The adapter is attached to one of the
internal switch ports, that is a member of VLANs 1, 2, and 3, and
has tagging enabled. Because of the VLAN tagging capabilities of
both the adapter and the switch, the server is able to communicate
on all three IP subnets in this network. Broadcast separation
between all three VLANs and subnets, however, is maintained.
PCs #1 and These PCs are attached to a shared media hub that is then
#2 connected to the switch. They belong to VLAN 2 and are logically
in the same IP subnet as Server 2 and PC 5. The associated external
switch port has tagging disabled.
PC #3 A member of VLAN 1, this PC can only communicate with
Server 2 and PC 5. The associated external switch port has tagging
disabled.
Server #1 Server #2
VLAN #3 VLAN #1, 2, 3
PC #2 PC #3
VLAN #2 VLAN #1
GbE GbE
Switch Module Switch Module
Gigabit/Tagged
adapter
PC #4
VLAN #3
PC #5
VLAN #1 & #2