Technical Reference - ZyXEL Communications EX5501-B0 User Manual

Table 55 Policer Setup: Add/Edit
LABEL
Committed
Burst Size
Excess Burst Size
Peak Rate
Peak Burst Size
Conforming
Action
Partial
Conforming
Action
Non-
Conforming
Action
Available Class
Selected Class
Cancel
OK

10.8 Technical Reference

The following section contains additional technical information about the Zyxel Device features
described in this chapter.
Chapter 10 Quality of Service (QoS)
DESCRIPTION
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 additional amount of bytes that are admitted at the committed rate besides the
committed burst size.
This is the maximum size of the second token bucket in the srTCM.
This field is only available when you select Single Rate Three Color in the Meter Type field.
Specify the maximum rate at which packets are admitted to the network.
The peak rate should be greater than or equal to the committed rate. This is to specify how
many bytes of tokens are added to the second bucket every second in the trTCM.
This field is only available when you select Two Rate Three Color in the Meter Type field.
Specify the maximum amount of bytes that are admitted at the committed rate.
This is the maximum size of the second token bucket in the trTCM.
This field is only available when you select Two Rate Three Color in the Meter Type field.
Specify what the Zyxel Device does for packets within the committed rate and burst size (green-
marked packets).
• Pass: Send the packets without modification.
• DSCP Mark: Change the DSCP mark value of the packets. Enter the DSCP mark value to use.
Specify the action that the Zyxel Device takes on yellow-marked packets.
Select Pass to forward the packets.
Select Drop to discard the packets.
Select DSCP Mark to assign a specified DSCP number (between 0 and 63) to the packets and
forward them. The packets are dropped if there is congestion on the network.
This field is only available when you select Single/Two Rate Three Color in the Meter Type field.
Specify what the Zyxel Device does for packets that exceed the excess burst size or peak rate
and burst size (red-marked packets).
• Drop: Discard the packets.
• DSCP Mark: Change the DSCP mark value of the packets. Enter the DSCP mark value to use.
The packets may be dropped if there is congestion on the network.
Select a QoS classifier to apply this QoS policer to traffic that matches the QoS classifier.
Highlight a QoS classifier in the Available Class box and use the > button to move it to the
Selected Class box.
To remove a QoS classifier from the Selected Class box, select it and use the < button.
Click Cancel to exit this screen without saving any changes.
Click OK to save your changes.
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