[  519.674768] bond0: (slave eth0): making interface the new active one
[  519.674843] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.922525] bond0: (slave eth0): Releasing backup interface
[  524.152086] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.422307] bond0: (slave eth0): Releasing backup interface
[  528.451365] bond0 (unregistering): Released all slaves