R3721-F3210-F3171-HP High-End Firewalls Network Management Configuration Guide-6PW101

271
With line rate configured on an interface, all packets to be sent through the interface are firstly handled
by the token bucket at line rate. If the token bucket has enough tokens, packets can be forwarded;
otherwise, packets are put into QoS queues for congestion management. In this way, the traffic passing
the physical interface is controlled.
Figure 174 Line rate implementation
In the token bucket approach to traffic control, bursty traffic can be transmitted so long as enough tokens
are available in the token bucket; if tokens are inadequate, packets cannot be transmitted until the
required number of tokens are generated in the token bucket. Traffic rate is restricted to the rate for
generating tokens, the traffic rate is limited, and bursty traffic is allowed.
Configuring a QoS policy
Configuring a QoS policy in the Web interface
Configuration task list
Table 46 QoS policy configuration task list
Task Remarks
Configuring a class
Optional.
This task creates a class and configures classification rules
for the class.
Configuring a traffic behavior
Optional.
This task creates a traffic behavior and configures actions
for the traffic behavior.
Configuring a policy
Optional.
This task creates a QoS policy and configures
class-behavior associations for the QoS policy.
IMPORTANT:
A class can be associated with only one traffic behavior in a
QoS policy. If a class is associated with multiple traffic
behaviors, the last associated one takes effect.