User`s manual

TN-5516/5518 Series Featured Functions
3-43
Setting Description Factory
Low/Normal/
Medium/High
This maps different CoS values to 4 different egress queues. 0: Low
1: Low
2: Normal
3: Normal
4: Medium
5: Medium
6: High
7: High
TOS/DiffServ Mapping
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 TN-5500 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:
• Departmental groups—You could have one VLAN for the marketing department, another for the finance
department, and another for the product development department.
• Hierarchical groups—You could have one VLAN for directors, another for managers, and another for
general staff.