Advanced Configuration Options
50
Model 3202 Getting Started Guide
4 • Web configuration
There are three types of QoS priority modes:
Port Based Priority
,
VLAN Tag Priority
and
IP DSCP Priority
.
You can also disable the QoS function.
Port Based Priority
Click on
QoS
under
Advanced
on the main menu to reach the QoS advanced configuration page. Then, select
the radio button for
Port Based Priority
to display the configuration options.
Figure 26. QoS - Port Based Priority page
In the
Port Based Priority
table, select the ports that the port-based priority rule should be applied. There six
ports to choose from: LAN1, LAN2, LAN3, LAN4, DSL and Sniffing.
In the
Scheduling Configuration
section, you can set up the
Queue
type from type 0 to type 3. Each Queue
type can setu p the queue
Weight
from 1 to 15.
The Queuing method is used to configure queuing algorithms for outgoing traffic. Queuing algorithms allows
the Model 3202 to maintain separate queues for packets from each individual source or flow and prevent a
source from monopolizing the bandwidth.
The
Queue
types are
Weight Round Robin (WRR)
,
Best Effort (BE)
, and
Strictly Priority (SP)
.
•
WRR
services on a rotating basis and is activated only when a port has more traffic than it can handle. A
queue is a given an amount of bandwidth irrespective of the incoming traffic on that port. The queue then
moves to the back of the list. The next queue is given an equal amount of bandwidth, and then moves to the
end of the list, and so on, depending on the number of queues being used, This works in a looping fashion
until a queue is empty.
•
BE
is used for data applications or any non-classified traffic. This would include e-mail, Internet browsing,
data back-up etc. The BE class is for traffic that can afford to wait and not affect the overall outcome of the
data application.
•
SP
services queues based on priority only. As traffic comes into the Model 3202, traffic on the highest pri-
ority queue, Q3 is transmitted first. When that queue empties, traffic on the next highest-priority queue,
