Bug ID 926549: AFM rule loops when 'Send to Virtual' is used with Virtual Server iRule 'LB::reselect'

Last Modified: Apr 24, 2024

Affected Product(s):
BIG-IP AFM(all modules)

Known Affected Versions:
15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 15.1.9,, 15.1.10,,,, 16.0.0,, 16.0.1,,, 16.1.0, 16.1.1, 16.1.2,,, 16.1.3,,,,,, 16.1.4,,,

Opened: Jul 13, 2020

Severity: 3-Major


With some configurations, executing a command such as 'tmsh show security firewall global-rules active' loops continuously, causing stat counters to rise, and possibly log messages to be written to /var/log/ltm.


The iRule loops continuously, causing stat counters to rise, and possibly logging messages in /var/log/ltm.


-- AFM is routing traffic to a Virtual Server through the 'Send to Virtual' option. -- The target Virtual Server uses the 'LB_FAILED' iRule to select a new Virtual Server through virtual command and 'LB::reselect'.


This configuration should be avoided, but if it is used, and if this does happen, you can restart tmm: bigstart restart tmm This stops the current looping, until it is triggered again. Impact of workaround: Traffic disrupted while tmm restarts.

Fix Information


Behavior Change

Guides & references

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