Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3
Fixed In:
12.0.0
Opened: May 23, 2014 Severity: 4-Minor Related Article:
K17161
In a chassis environment stpd attempts to connect to slots that are empty. These connection attempts are unsuccessful and will result in repeated stpd errors in the ltm log: err stpd[7707]: 01290003:3: Attempt to send 15 bytes to inettcp://127.3.0.4:4401 timed out after 8 seconds
Repeated stpd errors in the ltm log. This is a cosmetic error that can be ignored safely.
This issue exists when there is one or more empty slots in a chassis.
None.
The stpd process now checks to ensure that a slot is populated before attempting to connect to that slot.