User`s manual

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DSCP Priority Map: Select priority queue mapping for the DSCP field of every IP packet
from the pull-down menu. The DSCP includes DSCP (0) to DSCP (63), and the priority queue
includes Q0, Q1, Q2 and Q3.
VID Map: Set up the priority by assigning the specific VID to the specific queue.
Index: The entry number; 8 entries in total.
State: Disable or enable the entry.
VID: Enter the specific VLAN ID to be assigned to the queue.
Queue: Select the queue (Q0~Q3) to which the VLAN ID is assigned.
Remarking: Set up 802.1p or DSCP Remarking.
802.1p Remarking: Enable or disable 802.1p Remarking.
802.1p Remarking Map: Assign the priority bits to the specific queue.
DSCP Remarking: Enable or disable 802.1p Remarking.
DSCP Remarking Map: Assign the DSCPs to the specific queue.
Click the “OK” button to apply the settings.
3.4.6 VLAN Configuration
A Virtual Local Area Network (VLAN) is a network topology configured according to a logical
scheme rather than the physical layout. VLAN can be used to combine any collections of LAN
segments into a group that appears as a single LAN. VLAN also logically segments the
network into different broadcast domains. All broadcast, multicast, and unknown packets
entering the Switch on a particular VLAN will only be forwarded to the stations or ports that
are members of that VLAN.
VLAN can enhance performance by conserving bandwidth and improve security by limiting
traffic to specific domains. A VLAN is a collection of end nodes grouped by logics instead of
physical locations. End nodes that frequently communicate with each other are assigned to
the same VLAN, no matter where they are physically located on the network. Another benefit
of VLAN is that you can change the network topology without physically moving stations or
changing cable connections. Stations can be „moved‟ to another VLAN and thus
communicate with its members and share its resources, simply by changing the port VLAN
settings from one VLAN to another. This allows VLAN to accommodate network moves,
changes and additions with the greatest flexibility.
The Managed Switch supports two types of VLAN, these are: IEEE 802.1q Tag VLAN and Q
in Q VLAN.