Bug ID 935801: HSB diagnostics are not provided under certain types of failures

Last Modified: Jul 30, 2021

Bug Tracker

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

Known Affected Versions:
13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1

Fixed In:
16.1.0, 15.1.2

Opened: Aug 12, 2020
Severity: 3-Major

Symptoms

In rare cases where the HSB detects an error and triggers an high availability (HA) failover, HSB-specific diagnostic data is not provided. An example are XLMAC errors, which can be seen in the LTM logs: <13> Jul 25 18:49:41 notice The number of the HSB XLMAC recovery operation 11 or fcs failover count 0 reached threshold 11 on bus: 3. <13> Jul 25 18:49:41 notice high availability (HA) failover action is triggered due to XLMAC/FCS erros on HSB1 on bus 3.

Impact

There is less HSB data for analysis when an internal HSB occurs.

Conditions

The HSB detects an internal error.

Workaround

None.

Fix Information

Dump HSB registers on all HSB initiated high availability (HA) failovers.

Behavior Change