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Configuring a Policer Action

If a packet does not exceed its rate limits, it is processed further without being affected. If the packet exceeds its limits, it is handled in one of two ways, depending on what you specify:

Discarded
Marked for subsequent processing based on its loss priority and forwarding class

To configure a policer action, include the then statement at the [edit firewall policer policer-name] hierarchy level:



[edit firewall policer policer-name]
then {
}

Policer actions include one or more of the following:

discard—Discard a packet that exceeds the rate limits.
loss-priority level—Set the loss priority level to low, medium-low, medium-high, or high.
forwarding-class class-name—Specify the forwarding class to any class name already configured for the forwarding class.

Example: Configuring a Policer Action

Discard any packet that exceeds a bandwidth of 300 kilobits per second (Kbps) and a burst-size limit of 500 kilobytes (KB):



[edit firewall]
policer p1 {


if-exceeding {
bandwidth-limit 300k;
burst-size-limit 500k;
}




then {
discard;
}


}

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