Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 15.1.2, 15.1.2.1, 15.1.3
Fixed In:
16.1.0, 16.0.1.2, 15.1.3.1, 14.1.4.4
Opened: Oct 23, 2020 Severity: 3-Major
TMM may prematurely shut down during its initialization when several TMMs and interfaces are configured. The system logs messages in one or more TMM log files (/var/log/tmm*): MCP connection aborted, exiting.
TMM shuts down prematurely. Traffic disrupted while tmm restarts. Possible deadlock and MCP restart loop requiring a full reboot of the BIG-IP device.
-- BIG-IP Virtual Edition (VE). -- Happens during TMM startup. -- The issue is intermittent, but is more likely to occur on systems with a lot of TMMs (more 20 in most cases) and several interfaces (approximately 8 or more).
None.
A new TCL configuration element was added: "max_poll_pre_rfw", with a default value of 4, to modulate the function of "max_poll" in TMMs which are not yet Ready-For-World. The value of "max_poll_pre_rfw" can be configured in the "tmm_base.tcl" file.