Bug ID 1889877: The tmrouted daemon scheduling multiple ZebOS processes might lead to delayed process starts

Last Modified: Apr 04, 2025

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

Known Affected Versions:
16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1

Opened: Mar 26, 2025

Severity: 3-Major

Symptoms

No BFD sessions will be established.

Impact

Processes are starting and getting rescheduled, repeatedly.

Conditions

When multiple BGPD processes are scheduled for startup by the tmrouted daemon, a condition can occur when tmrouted initiates the startup of several daemons simultaneously. This triggers a thread handling issue on the BGPD side, where one process progresses successfully, but the others get stuck and fail to advance.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips