Bug ID 458104: LTM UCS load merge trunk config issue

Last Modified: Feb 13, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
10.2.3, 10.2.4, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.4

Opened: Apr 21, 2014
Severity: 3-Major
Related AskF5 Article:
K16795

Symptoms

Performing the ucs sys load command does not overwrite trunk interface configuration, it merges with the existent setting. When loading UCS with RMA flag, you may not get expected results. The expected outcome is that the trunk is overwritten, not merged.

Impact

The trunk incorrectly appears as merged, having both sets of interfaces. The config on disk bigip_base.conf shows the correct config. Reboot does not resolve the issue.

Conditions

Current configuration has a trunk with several interface members. The UCS to be loaded contains the same trunk name but with other interfaces.

Workaround

1. Restore the BIG-IP configuration to factory default settings using the command sequence: -- load sys config default. -- load sys ucs example.ucs no-license. -- save sys config. 2. Force the mcpd process to reload the BIG-IP configuration with the command sequence: touch /service/mcpd/forceload. -- load sys ucs example.ucs no-license. -- save sys config.

Fix Information

Trunk config member interfaces are no longer merged during load. Only the trunk member interfaces defined in the config are present after a load.

Behavior Change