Adding and Editing Classes
T
In this field…
Do this…
able 22: QoS Class Fields
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 (outgoi g email).
•
Medium (Normal Traffic)
- Normal traffic
(Interactive Traffic)
- Traffic that is highly sensitive to delay.
example, IP telephony, videoconferencing, and interactive
quire quick user response, such as telnet.
th 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
Outgoing Traffic:
G
Le
Select this option to guarantee a minimum bandwidth for outgoing traffic
ing to this class. Then type the minimum bandwidth (in
bits/second) in the field provided.
Outgoing T
Limit
of outgoing traffic belonging to this
maximum rate (in kilobits/second) in the field
Incom
Guarante
Leas
r incoming traffic
dth (in
n
•
High
For
protocols that re
Traffic Shaper serves delay-sensitive traffic wi
Traffic)" level.
uarantee At
ast
belong
kilo
raffic:
rate to
Select this option to limit the rate
class. Then type the
provided.
ing Traffic:
Select this option to guarantee a minimum bandwidth fo
e At
belonging to this class. Then type the minimum bandwi
t
kilobits/second) in the field provided.
158
D-Link NetDefend firewall User Guide
