Manual Chapter : Configure a log level for QUIC log messages

Applies To:

  • BIG-IP LTM

    15.1.9, 15.1.8, 15.1.7, 15.1.6, 15.1.5, 15.1.4, 15.1.3, 15.1.2, 15.1.1, 15.1.0

back-action Logging QUIC messages

Updated Date: 04/21/2026

Configure a log level for QUIC log messages

Before you perform this task, confirm that your user account grants you access to the TMSH shell.

You can control the log level for QUIC log messages, using a BigDB variable. Note that all QUIC messages are logged to the file /var/log/ltm.

  1. Access a console window on the BIG-IP system.

  2. If a system prompt is displayed, type tmsh. If a tmsh prompt is displayed, skip this step.

  3. Type the command sequence modify sys db tmm.quic.log.level *log\_level*

    Valid values are: Critical, Error, Warning, Notice, Info, and Debug.

    For example: modify sys db tmm.quic.log.level critical

After you perform this task, the system logs QUIC messages according to the log level you specified with the BigDB variable.