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JUNOSe 11.1.x Policy Management Configuration Guide
Figure 7: Input Policy with Primary Stage and Auxiliary Substage
The order of policy action execution for each attachment is:
1.
2.
3.
4.
5.
6.
Starting Policy Processing
Input and auxiliary-input classification operations, specified by the details of each
policy, are performed in parallel. Classifier inputs for both policies are determined
concurrently using the initial values of the classification terms. Policy attachments
within a stage cannot communicate between the input and auxiliary-input
classification operations. For example, any changes made by the input attachment
to traffic-class, color, TOS, or user packet class are not visible in the auxiliary-input
policy classification. If this communication is needed, it can only be done between
different policy stages, rather than within a single stage.
The results of the input policy actions are passed forward to the auxiliary-input policy
action processing. This means that a color-aware rate limit profile action in the
auxiliary substage recognizes any change in color caused by primary policy actions.
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Overlapping Classification for IP Input Policy
Filter
Modify (includes setting of color, traffic class, user packet class) and Log
Rate limit profile/color
Mark TOS
Exception
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