Use pattern sets and data sets

Last published : Sep 24, 2026
Advanced policy expressions that take pattern sets or data sets as an argument can be used to perform string matching operations.
The usage is as follows:
<text>.<operator>("<name>")
where,
  • <text> is the expression that identifies a string in a packet. Example: HTTP.REQ.HEADER("Host").
  • <operator> is one of the operators described in the Pattern Set Types table pdf.
For sample usage, see Sample Usage.
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