Bug ID 1966313: Websocket event logs show "N/A" for virtual server name except during upgrade request

Last Modified: Sep 15, 2025

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

Known Affected Versions:
17.1.2.1, 17.1.2.2

Opened: Jun 09, 2025

Severity: 4-Minor

Symptoms

Remote logging for WebSocket traffic may display "N/A" in the vs_name field for messages other than the initial upgrade request.

Impact

Log entries may lack clarity or traceability due to missing virtual server name information, potentially complicating monitoring and troubleshooting.

Conditions

Occurs when using a remote logging profile in CSV format with ASM and WebSocket traffic on a configured virtual server.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips