• Example of Servers Supporting Multiple VLANs with Tagging
"• Example of Servers Supporting Multiple VLANs with Tagging" (Jpg.113)" shows an example network that uses VLANs. In this example network, the physical LAN consists of a switch, two servers, and five clients. The LAN is logically organized into three different VLANs, each representing a different IP subnet. The features of this network are described in "• Example VLAN Network Topology" (Jpg.113).
• Example VLAN Network Topology
Component | Description |
VLAN #1 | An IP subnet consisting of the Main Server, PC #3, and PC #5. This subnet |
| represents an engineering group. |
|
|
VLAN #2 | Includes the Main Server, PCs #1 and #2 via shared media segment, and PC |
| #5. This VLAN is a software development group. |
|
|
VLAN #3 | Includes the Main Server, the Accounting Server and PC #4. This VLAN is |
| an accounting group. |
|
|
Main Server | A |
| The Main Server has a Broadcom adapter installed. All three IP subnets are |
| accessed via the single physical adapter interface. The server is attached to |
| one of the switch ports, which is configured for VLANs #1, #2, and #3. Both |
| the adapter and the connected switch port have tagging turned on. Because of |
| the tagging VLAN capabilities of both devices, the server is able to |
| communicate on all three IP subnets in this network, but continues to |
| maintain broadcast separation between all of them. |
|
|
Accounting | Available to VLAN #3 only. The Accounting Server is isolated from all traffic |
Server | 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 to VLAN #2 only, 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. |
|
|
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1 1 Gbit/s Ethernet I/O Module 113
