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Possible reasons about why Keepalived virtual IP was removed

ve flag

I have two servers 192.168.1.11 and 192.168.1.12 working with keepalived. The virtual IP is 192.168.1.13. It was working well for a month. Then I was notified that virtual IP was not available. I executed ping 192.168.1.13 and it showed 'Destination Host Unreachable'. Even though, when I executed systemctl status keepalived on both servers, They showed Active. So what I did was executing the command systemctl restart keepalived and then the virtual IP started to work. I was trying to reproduce the error in test server in order to know the reasons. One way is executing: ip addr del 192.168.1.13/24 dev eth2 on server 192.168.1.11, so this was a possible reason

What other possible reasons could there be for this case?

mangohost

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