User`s manual

EDS-600 Series User’s Manual Featured Functions
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The IEEE Std 802.1Q-1998 defines how VLANs operate within an open packet-switched network.
An 802.1Q compliant packet carries additional information that allows a switch to determine
which VLAN the port belongs. If a frame is carrying the additional information, it is known as a
tagged frame.
To carry multiple VLANs across a single physical (backbone, trunk) link, each packet must be
tagged with a VLAN identifier so that the switches can identify which packets belong to which
VLAN. To communicate between VLANs, a router must be used.
The EDS-600 supports two types of VLAN port settings:
y Access Port: The port connects to a single device that is not tagged. The user must define the
default port PVID that determines to which VLAN the device belongs. Once the ingress
packet of this Access Port egresses to another Trunk Port (the port needs all packets to carry
tag information), the EDS-600 will insert this PVID into this packet to help the next 802.1Q
VLAN switch recognize it.
y Trunk Port: The port connects to a LAN that consists of untagged devices/tagged devices
and/or switches and hubs. In general, the traffic of the Trunk Port must have a Tag. Users can
also assign PVID to a Trunk Port. The untagged packet on the Trunk Port will be assigned the
port default PVID as its VID.
The following section illustrates how to use these ports to set up different applications.
Configuring Virtual LAN
VLAN Settings
To configure the EDS-600’s 802.1Q VLAN, use the VLAN Settings page to configure the ports.
VLAN Mode
Setting Description Factory Default
802.1Q VLAN Set VLAN mode to 802.1Q VLAN
Port-based VLAN Set VLAN mode to Port-based VLAN
802.1Q VLAN