Juniper EX9200 Features Manual page 64

Traffic Policers Feature Guide for EX9200 Switches
Results
Step-by-Step
Procedure
46
network node, and any preexisting color markings are used in determining the
appropriate policing action for the packet.
Because you are applying this three-color policer applied to input at Layer 2, you
must configure the policer to be color-blind.
Specify the policer traffic limits used to classify a green traffic flow.
4.
[edit firewall three-color-policer trTCM2-cb]
user@host# set two-rate
user@host# set two-rate
Specify the additional policer traffic limits used to classify a yellow or red traffic
5.
flow.
[edit firewall three-color-policer trTCM2-cb]
user@host# set two-rate
user@host# set two-rate
(Optional) Specify the configured policer action for packets in a red traffic flow.
6.
[edit firewall three-color-policer trTCM2-cb]
user@host# set action loss-priority high then discard
In color-aware mode, the three-color policer configured action can increase the
packet loss priority (PLP) level of a packet, but never decrease it. For example, if a
color-aware three-color policer meters a packet with a medium PLP marking, it can
raise the PLP level to high, but cannot reduce the PLP level to low.
Confirm the configuration of the three-color policer by entering the
configuration mode command. If the command output does not display the intended
configuration, repeat the instructions in this procedure to correct the configuration.
[edit]
user@host# show firewall
three-color-policer trTCM2-cb {
logical-interface-policer;
action {
loss-priority high then discard;
}
two-rate {
color-blind;
committed-information-rate 40m;
committed-burst-size 100k;
peak-information-rate 60m;
peak-burst-size 200k;
}
}
Applying the Three-Color Policer to the Layer 2 Input at the Logical Interface
To apply the three-color policer to the Layer 2 input at the logical interface:
Enable application of Layer 2 logical interface policers.
1.
[edit]
user@host# edit interfaces ge-1/3/1 unit 0
committed-information-rate
committed-burst-size 100k
peak-information-rate 60m
peak-burst-size 200k
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40m
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