[  520.076711] bond0: (slave eth0): making interface the new active one
[  520.076791] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.322494] bond0: (slave eth0): Releasing backup interface
[  524.435871] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.608419] bond0: (slave eth0): Releasing backup interface
[  528.634297] bond0 (unregistering): Released all slaves