Bug ID 1400557: Incorrest slot info may cause blade backplane link errors

Last Modified: Apr 28, 2025

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

Fixed In:
F5OS-C 1.8.0

Opened: Nov 21, 2023

Severity: 3-Major

Symptoms

In VELOS v1.7.1, the system controller relies on the slot width of each blade in order to configure backplane port, as it is required for the blade to occupy the system controller blade slot. If the slot width is one, the system controller configures for Bx110 and if it is two, the configures Bx520. If the ConfD slot info is not available, the resulting backplane port configuration may be no suitable for the blade occupying the given slot.

Impact

Blade will fail to send /receive traffic over the backplane.

Conditions

A Bx110 or Bx520 blade is present in the chassis.

Workaround

This defect is addressed in 1.8.0 by changing chassis manager, so that it updates confD with slot info provided by platofmr-ha before processing other HA info that might result in an error which skips the processing of the slot info.

Fix Information

Blade backplane port link errors no longer observed when suitable slot info is present in system controller ConfD.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips