Naming Conventions For Three-Color Policers - Juniper EX9200 Features Manual

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Naming Conventions for Three-Color Policers

Copyright © 2016, Juniper Networks, Inc.
NOTE: For a three-color policer operating in color-aware mode and when
the PLP of the input packet is medium-low, the color of the input packet to
the policer is mapped to the color yellow.
In such a scenario, if the color of the input packet remains unchanged, the
policer operates in the following way:
On a T1600 Enhanced Scaling Type 4 FPC (T1600-FPC4-ES), the PLP of
the output packet remains medium-low.
On a T4000 Type 5 FPC (T4000-FPC5-3D), the PLP of the output packet
is marked as medium-high.
Because of this difference, for any applications (such as rewrite and WRED
selection on egress interface) that use PLP, the packets are treated differently
for the same flow depending on the FPC type (T1600 Enhanced Scaling FPC4
(T1600-FPC4-ES) or T4000 FPC5 (T4000-FPC5-3D)) on which the policer
is applied.
Three-Color Policer Configuration Overview on page 145
Platforms Supported for Three-Color Policers on page 149
Naming Conventions for Three-Color Policers on page 151
Because policers can be numerous and must be applied correctly to work, a simple
naming convention makes it easier to apply the policers properly.
We recommend that you name your policer using a convention that identifies the basic
components of the policer:
Three-color policer type—Where
trTCM identifies a two-rate three-color policer.
Three-color policer color mode—Where
and identifies a color-blind three-color policer.
cb
NOTE:
TCM stands for tricolor marking.
Table 11 on page 152 describes a recommended naming convention for policers.
Chapter 13: Three-Color Policer Configuration Guidelines
identifies a single-rate three-color policer and
srTCM
identifies a color-aware three-color policer
ca
151