Patton electronic RocketLink 3202 - Manual (Page 45)

Advanced Configuration Options 45
Model 3202 Getting Started Guide 4 • Web configuration
diate network devices or the host at the other end of the connection supports VLANs. Then, assign ports on
the other VLAN-aware network devices along the path that will carry this traffic to the same VLAN(s), either
manually or dynamically using Generic VLAN Routing Protocol (GVRP). However, if you want a port on
this Model 3202 to participate in one or more VLANs, but none of the intermediate network devices nor the
host at the other end of the connection supports VLANs, then you should add this port to the VLAN as an
access port.
Note VLAN-tagged frames can pass through VLAN-aware or VLAN-
unaware network inter-connection devices, but the VLAN tags
should be stripped off before passing it on to any end-node host that
does not support VLAN tagging.
• VLAN Classification - When the Model 3202 receives a frame, it classifies the frame in one of two ways. If
the frame is untagged, the Model 3202 assigns the frame to an associated VLAN (based on the default
VLAN ID of the receiving port). But if the frame is tagged, the Model 3202 uses the tagged VLAN ID to
identify the port broadcast domain of the frame.
• Port Overlapping - You can use port overlapping to allow access to commonly shared network resources
among different VLAN groups, such as file servers or printers.
• Untagged (Static) VLANs - Untagged (or static) VLANs are typically used to reduce broadcast traffic and
to increase security. A group of network users assigned to a VLAN form a broadcast domain that is separate
from other VLANs configured on the Model 3202. Packets are forwarded only between ports that are des-
ignated for the same VLAN. Static VLANs can be used to manually isolate user groups or subnets.