Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

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JRahm's avatar
JRahm
Icon for Admin rankAdmin
Mar 02, 2006

Persist syntax

What is the difference? persist uie [string tolower [HTTP::host]] 120 and persist add uie [string tolower [HTTP::host]] 120 Also, I noticed in another post that the session table is br...
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unRuleY_95363's avatar
unRuleY_95363
Historic F5 Account
Mar 02, 2006
persist uie [string tolower [HTTP::host]] 120
This command is intended to be used before the load-balancing decision. It means, lookup a persistence record matching this key and use it if found, otherwise add a persist record under that key after making the load-balancing decision.

persist add uie [string tolower [HTTP::host]] 120
This command is intended to be used only after the load-balancing decision and it merely adds (or updates) a persistence record to the currently connected pool member.

No, only the session command was broken in 9.1.1.

HTH!