ZyXEL Communications P-873HNU-51B, User Manual

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Chapter 10 Quality of Service (QoS)
P-873HNU(P)-51B User’s Guide
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10.6.1 Add/Edit a QoS Policer
Click Add new Officer in the Policer Setup screen or the Edit icon next to a policer to show the
following screen.
Figure 57
Policer Setup: Add/Edit
The following table describes the labels in this screen.
Action This shows the how the policer has the VDSL Router treat different types of
traffic belonging to the policer’s member QoS classes.
Modify Click the Edit icon to edit the policer.
Click the Delete icon to delete an existing policer. Note that subsequent rules
move up by one when you take this action.
Table 38
Network Settings > QoS > Policer Setup (continued)
LABEL DESCRIPTION
Table 39
Policer Setup: Add/Edit
LABEL DESCRIPTION
Active Select the check box to activate this policer.
Name Enter the descriptive name of this policer.
Meter Type Select how the policer shapes the traffic of the member QoS classes.
The Simple Token Bucket algorithm uses tokens in a bucket to control when
traffic can be transmitted. Each token represents one byte. The algorithm allows
bursts of up to b bytes which is also the bucket size.
The Single Rate Three Color Marker (srTCM) is based on the token bucket filter
and identifies packets by comparing them to the Committed Information Rate
(CIR), the Committed Burst Size (CBS) and the Excess Burst Size (EBS).
The Two Rate Three Color Marker (trTCM) is based on the token bucket filter
and identifies packets by comparing them to the Committed Information Rate (CIR)
and the Peak Information Rate (PIR).
Committed
Rate Specify the committed rate. When the incoming traffic rate of the member QoS
classes is less than the committed rate, the device applies the conforming action to
the traffic.