Bug ID 1224261: Chassis internal controlplane and mgmtplane traffic outage during failover and controller reboot.

Last Modified: Jun 04, 2025

Affected Product(s):
F5OS F5OS-C(all modules)

Fixed In:
F5OS-C 1.8.0

Opened: Jan 12, 2023

Severity: 3-Major

Symptoms

Mgmt and controlplane traffic can be unstable due to several issues in the system controller LACP implementation.

Impact

Mgmt and controlplane traffic outage is anticipated between system controllers and blades will go down between 5 and 60 seconds. The system impacts include user losing connection to the tenant mgmt address, errors on blade processes that communicate with controller processes, and some system database write or read operations failing.

Conditions

Standby system controller reboot, system controller software failover using "go-standby" command, and system controller software upgrade.

Workaround

N/A

Fix Information

During system controller reboot, there is no mgmt or controlplane traffic outage. During System controller failover, there is typically a brief traffic outage lasting around 3 seconds.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips