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Specifying an Output Priority Map

An output priority map identifies egress traffic with specified queue classification and packet loss priority (PLP), and classifies that traffic as premium.

If you include a premium-priority policer, you can specify an output priority map by including the classifier statement at the [edit interfaces interface-name gigether-options ethernet-policer-profile output-priority-map] hierarchy level:



[edit interfaces interface-name gigether-options
ethernet-policer-profile output-priority-map]

classifier {



premium {



forwarding-class class-name {

loss-priority (high | low);
}


}


}

You can define a forwarding class, or you can use a predefined forwarding class. Table 53 shows the predefined forwarding classes and their associated queue assignments.

Table 53: Default Forwarding Classes

Forwarding Class Name	Queue
best-effort	Queue 0
expedited-forwarding	Queue 1
assured-forwarding	Queue 2
network-control	Queue 3

For more information about CoS forwarding classes, see the JUNOS Class of Service Configuration Guide. For a configuration example, see Example: Configuring Gigabit Ethernet Policers.

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