Overview

As per the customer, they are not able to switch from primary to secondary and keepalived service seems malfunctioning. Shifting of traffic was attempted by restating the keepalived services.

Solution

The issue could happen because the Firewall or SE Linux components are not functioning properly. Ask the customer to check the status of these components using:

To check firewall - systemctl status firewalld.service
To check SE Linux - sestatus

If these services are not functioning properly they need to directly involve OS Support(RHEL Support) as Hardware and OS are usually the outside scope of support.