VRRP Testing Round 3

Today, tested the concept of a Synch Group.

Used the configuration (essentially) from this ubuntu manpage.
http://manpages.ubuntu.com/manpages/precise/man5/keepalived.conf.5.html

Worked very well on VirtualBox, where we connected and disconnected virtual cables and watched the IPs move, in tandem.

Using just two instances if you disconnect one interface on each, VRRP considers itself in a complete fault state and neither box gets a virtual IP on either interface - which is what you want if it's a synch group.

Pretty happy with this testing.

BTW...another site I found had some decent comments about some options:
https://linux.die.net/man/5/keepalived.conf