- Sun GigaSwift Ethernet Adapter Installation and User's Guide (February 2003)

64 Sun GigaSwift Ethernet Adapter Installation and User’s Guide • February 2003

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. Several Sun products support multiple VLANs on a

per port or per interface basis, allowing very flexible network configurations.

FIGURE 5-1 shows an example network that uses VLANs

FIGURE 5-1 Example of Servers Supporting Multiple VLANs with Tagging Adapters

The example network has the following features:

■ The physical LAN network consists of a switch, two servers, and five clients.

■ The LAN is logically organized into three different VLANs, each representing a

different IP subnet.

■ VLAN 1 is an IP subnet consisting of the Main Server, Client 3, and Client 5. This

represents an engineering group.

■ VLAN 2 includes the Main Server, Clients 1 and 2 via shared media segment, and

Client 5. This is a software development group.

■ VLAN 3 includes the Main Server, the Accounting Server and Client 4. This is an

accounting group.

VLAN 1

VLAN 2

VLAN 3

Accounting

Server

(VLAN 3)

Main Server

Adapter

Gigabit/Tagged

(All VLANs)

Shared Media Segment

Engineering/

Software PC 5

Adapter

Gigabit/Tagged

(VLAN 1 & 2)

Accounting

PC 4

(VLAN 3)

Engineering

PC 3

(VLAN 1)

Software

PC 2

(VLAN 2)

Software

PC 1

(VLAN 2)

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10/100 Base - TX Gigabit Ethernet