Sun Microsystems 806-2989-10, Installation And User Manual

Page: 66 / 80

46 Sun GigaSwift Ethernet Adapter Installation and User’s Guide • February 2001
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)
1 2 3 4 5 6 7 8
9
1 2 3 4 5 6 7 8
10/100 Base - TX Gigabit Ethernet