Bug ID 1576345: Port mode mismatch on QSFP ports can cause interface flaps on other ports

Last Modified: Dec 18, 2024

Affected Product(s):
F5OS F5OS, F5OS-A(all modules)

Known Affected Versions:
F5OS-A 1.5.1, F5OS-A 1.5.2, F5OS-A 1.7.0

Opened: Apr 08, 2024

Severity: 2-Critical

Symptoms

When the port mode is mismatched on a Front Panel QSFP port, it can cause port interface flapping on other ports.

Impact

The status on other interfaces may incorrectly show ‘down’ when the interface is ‘up’.

Conditions

A port mode mismatch, such as a 100GE optic installed when the port is configured for 40GE operating mode.

Workaround

Do not operate in a mismatched mode.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips