[  519.757322] bond0: (slave eth0): making interface the new active one
[  519.757397] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.995288] bond0: (slave eth0): Releasing backup interface
[  524.106076] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.290968] bond0: (slave eth0): Releasing backup interface
[  528.337938] bond0 (unregistering): Released all slaves