Add/Edit A Qos Policer - ZyXEL Communications SBG5500-A User Manual

11.5.1 Add/Edit a QoS Policer

Click Add in the Policer Setup screen or select a policer and click Edit next to a policer to show the
following screen.
Figure 149 Policer Setup: Add/Edit
The following table describes the labels in this screen.
Table 90 Policer Setup: Add/Edit
LABEL
Policer Setting
Enable
Name
Meter Type
Committed
Rate
Committed
Burst Size
Excess Burst Size
Chapter 11 Bandwidth Management
DESCRIPTION
Select the check box to activate this policer.
Enter the descriptive name of this policer. You can use up to 31 alphanumeric characters, it must
begin with a letter. The valid characters are [0-9][a-z] [A-Z][_-].
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).
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.
Specify the committed burst size for packet bursts. This must be equal to or less than the peak
burst size (two rate three color) or excess burst size (single rate three color) if it is also configured.
This is the maximum size of the (first) token bucket in a traffic metering algorithm.
Specify the burst size of packet bursts above which the SBG will perform the non-conforming
action.
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