Bug ID 421332: Configuration of unbundled 40GbE interface applied to first 10GbE interface in bundle

Last Modified: Apr 11, 2024

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

Known Affected Versions:
10.2.4, 11.0.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.5.1 HF1, 11.6.1 HF1, 11.5.1 HF2, 11.6.1 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, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.6.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.6.0, 12.0.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0, 12.0.0 HF1, 11.6.1, 11.5.4, 11.4.1 HF10, 11.2.1 HF16

Opened: May 16, 2013

Severity: 3-Major

Related Article: K16673

Symptoms

If a 40GbE interface is configured with bundling disabled, its attributes (including Enabled/Disabled state and media-sfp configuration) are inherited by the first corresponding 10GbE interface. This can result in the 10GbE interface being disabled or failing to establish a link, and reporting a status of DOWN. For example, on a B4300 blade: 40GbE interface 10GbE interfaces 2.1 bundle disabled, disabled 1.1 DOWN, 1.2-1.4 UP 2.2 bundle disabled, disabled 1.5 DOWN, 1.6-1.8 UP 2.3 bundle disabled, disabled 1.9 DOWN, 1.10-1.12 UP 2.4 bundle disabled, disabled 1.13 DOWN, 1.14-1.16 UP

Impact

The first of four unbundled 10GbE interfaces that correspond to the unbundled 40GbE interface may not behave as expected. In many situations, it may fail to establish a link successfully, and remain in a DOWN state.

Conditions

F5 hardware platforms that allow bundling/unbundling of 40GbE/10GbE interfaces: - VIPRION B4300 blades (A108, A110) - VIPRION B2250 blades (A113) - BIG-IP 10000-series appliances (D111, D112, D113) With the following interface configurations: - 1.x (10GbE) interfaces populated with 10Gb SFP+ modules and properly connected to switch. - 2.x (40GbE) interfaces configured as 'bundle disabled'.

Workaround

To recover after booting: Manually Disable and re-Enable affected (10GbE) 1.x interfaces after the BIG-IP system boots and initial configuration is applied. To prevent this issue from repeating: Restore the configuration of the corresponding bundled 2.x interface to its default state. For instance, ensure it is configured for auto negotiation, and is not disabled.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips