User Manual Part 1

Adding and Editing Classes
Chapter 9: Using Traffic Shaper 259
Table 42: QoS Class Fields
In this field… Do this…
Relative Weight Type a value indicating the class's importance relative to the other
defined classes.
For example, if you assign one class a weight of 100, and you assign
another class a weight of 50, the first class will be allocated twice the
amount of bandwidth as the second when the lines are congested.
Delay Sensitivity Select the degree of precedence to give this class in the transmission
queue:
• Low (Bulk Traffic) - Traffic that is not sensitive to long delays.
For example, SMTP traffic (outgoing email).
• Medium (Normal Traffic) - Normal traffic
• High (Interactive Traffic) - Traffic that is highly sensitive to delay.
For example, IP telephony, videoconferencing, and interactive
protocols that require quick user response, such as telnet.
Traffic Shaper serves delay-sensitive traffic with a lower latency. That is,
Traffic Shaper attempts to send packets with a "High (Interactive Traffic)"
level before packets with a "Medium (Normal Traffic)" or "Low (Bulk
Traffic)" level.
Outgoing Traffic:
Guarantee At
Least
Select this option to guarantee a minimum bandwidth for outgoing traffic
belonging to this class. Then type the minimum bandwidth (in
kilobits/second) in the field provided.
Outgoing Traffic:
Limit rate to
Select this option to limit the rate of outgoing traffic belonging to this
class. Then type the maximum rate (in kilobits/second) in the field
provided.
Incoming Traffic:
Guarantee At
Least
Select this option to guarantee a minimum bandwidth for incoming traffic
belonging to this class. Then type the minimum bandwidth (in
kilobits/second) in the field provided.