[  520.056798] bond0: (slave eth0): making interface the new active one
[  520.056870] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.256222] bond0: (slave eth0): Releasing backup interface
[  524.364226] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.545064] bond0: (slave eth0): Releasing backup interface
[  528.565017] bond0 (unregistering): Released all slaves