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Single-Rate Tricolor Marking, Color-Blind Mode

All packets are evaluated by the CBS. If a packet exceeds the CBS, it is evaluated by the EBS. In color-blind mode, the policer supports three loss priorities only: low, medium-high, and high.

In color-blind mode, packets that exceed the CBS but are below the EBS are marked yellow (medium-high). Packets that exceed the EBS are marked red (high), as shown in Table 42.

Table 42: Color-Blind Mode TCM Color-to-PLP Mapping

Color	PLP	Meaning
Green	low	Packet does not exceed the CBS.
Yellow	medium-high	Packet exceeds the CBS but does not exceed the EBS.
Red	high	Packet exceeds the EBS.

If you are using color-blind mode and you wish to configure an output policer that marks packets to have medium-low loss priority, you must configure a policer at the [edit firewall policer policer-name] hierarchy level. For example:



firewall {


policer 4PLP {


if-exceeding {
bandwidth-limit 40k;
burst-size-limit 4k;
}


then loss-priority medium-low;
}


}

Apply this policer at one or both of the following hierarchy levels:

[edit firewall family family filter filter-name term rule-name then policer policer-name]
[edit interfaces interface-name unit logical-unit-number family family filter filter-name]

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