Bug ID 908465: Unable to set LACP system priority manually

Last Modified: Dec 13, 2023

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

Known Affected Versions:
14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,,, 15.0.0, 15.0.1,,,,, 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,,

Fixed In:

Opened: May 12, 2020

Severity: 3-Major


LACP system priority is calculated internally using the system MAC. This occasionally results in priority being calculated as 0, which is not accepted by third party devices, such as Cisco.


LACP system priority is calculated as 0 which is rejected by Cisco. Note: BIG-IP administrators have no manual control over setting the LACP system priority value.


-- LACP is enabled on BIG-IP system. -- The last two octets of system MAC are zero.



Fix Information


Behavior Change

New schema changes added for setting LACP system priority manually.

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips