ZyXEL Communications AX Series User Manual page 260

Figure 155 Policer Setup: Add or Edit
The following table describes the labels in this screen.
Table 79 Policer Setup: Add/Edit
LABEL DESCRIPTION
Active Click this switch to enable or disable the policer. When the switch turns blue
enabled. Otherwise, it is not.
Name Enter a descriptive name of this policer.
Meter Type This shows the traffic metering algorithm used in this policer.
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 Specify the committed rate. When the incoming traffic rate of the member QoS classes is less
Rate than the committed rate, the device applies the conforming action to the traffic.
Chapter 12 Quality of Service (QoS)
AX/DX/EX/PX Series User's Guide
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, the function is