PT-7828 User’s Manual
Featured Functions
3-47
Setting
Description
Factory Default
Low/Normal/
Medium/High
This maps different TOS values to 4 different egress
queues.
1 to 16: Low
17 to 32: Normal
33 to 48: Medium
49 to 64: High
Using Virtual LAN
Setting up Virtual LANs (VLANs) on your PT-7828 increases the efficiency of your network by
dividing the LAN into logical segments, as opposed to physical segments. In general, VLANs are
easier to manage.
The Virtual LAN (VLAN) Concept
What is a VLAN?
A VLAN is a group of devices that can be located anywhere on a network, but which
communicate as if they are on the same physical segment. With VLANs, you can segment your
network without being restricted by physical connections—a limitation of traditional network
design. As an example, with VLANs you can segment your network according to:
y
Departmental groups
—You could have one VLAN for the marketing department, another
for the finance department, and another for the product development department.
y
Hierarchical groups
—You could have one VLAN for directors, another for managers, and
another for general staff.
y
Usage groups
—You could have one VLAN for email users and another for multimedia users.
Benefits of VLANs
The main benefit of VLANs is that they provide a network segmentation system that is far more
flexible than traditional networks. Using VLANs also provides you with three other benefits:
y
VLANs ease the relocation of devices on networks.
With traditional networks, network
administrators spend much of their time dealing with moves and changes. If users move to a
different subnetwork, the addresses of each host must be updated manually. With a VLAN
setup, if a host on VLAN
Marketing,
for example, is moved to a port in another part of the
