Bug ID 1281857: Repeated disabling and enabling of link partner interface might result in datapath corruption

Last Modified: Apr 28, 2025

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

Known Affected Versions:
F5OS-A 1.3.2, F5OS-A 1.4.0, F5OS-A 1.5.0

Fixed In:
F5OS-A 1.7.0, F5OS-A 1.5.1

Opened: Mar 28, 2023

Severity: 2-Critical

Symptoms

Packets received on an interface are corrupted or lost after a link partner interface is repeatedly disabled and then enabled within relatively short windows of time.

Impact

Dataplane services on the given interface will be inoperable.

Conditions

A link partner interface is repeatedly disabled and then enabled within relatively short windows of time.

Workaround

The product must be rebooted to recover.

Fix Information

An FPGA firmware fix was implemented to add an additional clock to an internal component that served to isolate noise between the MAC and itself.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips