Bug ID 1353649: System controller can configure an invalid chassis network prefix

Last Modified: Apr 28, 2025

Affected Product(s):
F5OS Velos(all modules)

Known Affected Versions:
F5OS-C 1.6.2

Fixed In:
F5OS-C 1.8.0

Opened: Sep 19, 2023

Severity: 2-Critical

Symptoms

If a booting system controller receives invalid chassis network prefix information from its peer, it may use that information and configure an invalid network prefix for the chassis.

Impact

Docker fails to start because the configured prefix info is invalid.

Conditions

Chassis startup.

Workaround

Netowrk prefix info validation is added to ensure network prefix info received form the peer system controller is valid. If not, the receiver will reboot expecting to receive valid network prefix info on the next startup.

Fix Information

After validating network prefix info received duing startup, docker startup failures caused by overlapping network prefixes are no longer seen.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips