Bug ID 1022741: Restoring config saved with different portgroup mode than what is running leaves interfaces without a hardware MAC address.

Last Modified: Dec 07, 2023

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

Known Affected Versions:
F5OS-C 1.1.2, F5OS-C 1.1.3, F5OS-C 1.1.4

Opened: Jun 02, 2021

Severity: 3-Major

Symptoms

Restoring configuration file saved with different portgroup mode(s) than the running configuration leaves interfaces without a hardware MAC address.

Impact

The lack of hw-mac-address per interface impacts the overall functionality of L2 protocols (e.g. LACP members cannot become operationally UP because LACP BPDUs exchange require port hw-mac-address).

Conditions

The issue occurs when the user does a restore of a backup file which has portgroup mode configuration different than what is currently running on the box.

Workaround

On a chassis after backup/restore with different portgroup modes, follow the steps to address the issue: - change the portgroup modes of the impacted blades to default MODE_100GB - commit and allow blade(s) to reboot - verify the blade ports are now matching the 100GB mode - restore the portgroup mode of the impacted blades to desired mode (matching what is in the backup file) - commit and allow blade(s) to reboot - verify the ports are published to match the desired mode and the state contains hw-mac-address (issue command: show interfaces interface ethernet state hw-mac-address) - reapply the configuration that references the interfaces (e.g. add back interface members into the LACP LAG)

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips