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Sun Dual Port 10GBase-T Adapter User’s Guide • July 2012
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
VLAN represents an engineering group.
■
VLAN 2 includes the Main Server, Clients 1 and 2 by means of a shared media
segment, and Client 5. This VLAN is a software development group.
■
VLAN 3 includes the Main Server, the Accounting Server, and Client 4. This
VLAN is an accounting group.
The Main Server is a high-use server that must be accessed from all VLANs and IP
subnets. The server has a Sun Dual Port 10GBase-T Adapter installed. All three IP
subnets are accessed by means of the single physical Ethernet adapter interface. The
server is attached to one of the switch’s Gigabit Ethernet ports, which is configured
for VLANs 1, 2, and 3. Both the Ethernet 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 those subnets. The network contains
the following components:
■
The Accounting Server is available to only VLAN 3. The Accounting Server is
isolated from all traffic on VLANs 1 and 2. The switch port connected to the server
has tagging turned off.
■
Clients 1 and 2 are attached to a shared media hub that is then connected to the
switch. Clients 1 and 2 belong only to VLAN 2. Those clients are logically in the
same IP subnet as the Main Server and Client 5. The switch port connected to this
segment has tagging turned off.
■
Client 3 is a member of VLAN 1. This client can communicate only with the Main
Server and Client 5. Tagging is not enabled on Client 3’s switch port.
■
Client 4 is a member of VLAN 3. This client can communicate only with the
servers. Tagging is not enabled on Client 4’s switch port.
■
Client 5 is a member of both VLANs 1 and 2. This client has a Sun Dual Port
10GBase-T Adapter installed. Client 5 is connected to switch port 10. Both the
Ethernet adapter and the switch port are configured for VLANs 1 and 2, and both
have tagging enabled.
VLAN tagging must be enabled only on switch ports that:
■
Create trunk links to other VLAN-aware Ethernet switches.
■
Are connected to tag-capable end-stations, such as servers or workstations with
VLAN-aware Ethernet adapters.
Summary of Contents for E25544-02
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