Bug ID 689089: VIPRION cluster IP reverted to 'default' ( following unexpected reboot

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP TMOS(all modules)

Known Affected Versions:
11.2.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,, 12.1.0, 12.1.1, 12.1.2, 12.1.3,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,

Fixed In:

Opened: Oct 17, 2017

Severity: 3-Major


The cluster configuration file can be lost or corrupted, resulting in the out-of-band cluster management IP reverting to the default value.


Management IP reverts to, resulting in loss of access to the chassis through the out-of-band management network.


Unexpected system restart while the configuration file is being updated may cause the file to become corrupted. If this occurs, the following error will be logged during blade startup: "err clusterd[8171]: 013a0027:3: Chassis has N slots, config file has 0, ignoring config file" Where "N" is the number of physical slots in the chassis (2, 4, or 8).


If this occurs, the management IP can be restored using TMSH or the UI through an in-band self IP, or with TMSH through the management console port.

Fix Information

The configuration file update logic has been changed to prevent file corruption during update.

Behavior Change

Guides & references

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