Last Modified: Oct 06, 2020
See more info
Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2
13.0.0, 12.1.2 HF1
Opened: Nov 08, 2016
Related AskF5 Article: K28240580
On the BIG-IP i2x00 and i4x00 platforms, tmm enters an infinite 'restart' loop after a 'bigstart restart' or 'bigstart restart tmm' command if traffic is actively flowing through the TMM. This is the result of an HSB transmitter failure.
Traffic disrupted while tmm restarts.
Traffic actively flowing through the tmm and you issue 'bigstart restart' or 'bigstart restart tmm'. Another instance occurs when syncing the datasync-global-dg device-group for an HA configuration on iSeries platforms.
Ensure all traffic is stopped before issuing the 'bigstart restart' or 'bigstart restart tmm' commands. Set HSB::failures_before_reset in /config/tmm_init.tcl to a high value, such as 1000 (default is 50) may resolve the issue, depending on the conditions this issue occurred.
TMM restart loop no longer occurs following 'bigstart restart' on i2x00 and i4x00 platforms.