Bug ID 557452: Messages logged when the CAN daemon (cand) receives unsolicited data

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
10.2.4, 11.2.1, 11.4.1, 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, 11.5.10, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.6.0, 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, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4

Fixed In:
12.1.0

Opened: Nov 10, 2015
Severity: 4-Minor

Symptoms

When the log filter is configured to filter at the 'Informational' log level, the logs can get filled with 'request for unsolicated data' messages. These messages appear in the log every 20 seconds.

Impact

Logs fill with messages. These messages are related to communication with the CAN daemon (cand), and are completely benign, so you can safely ignore them.

Conditions

This occurs when using a remote syslog logging filter with the 'Severity' field set to 'Informational'.

Workaround

Change the remote syslog logging level to 'Notice'.

Fix Information

Reduced the log level for cand reporting unsolicited data to the debug level.

Behavior Change