[  512.669261] bond0: (slave eth0): making interface the new active one
[  512.669344] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.887864] bond0: (slave eth0): Releasing backup interface
[  517.015726] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.238224] bond0: (slave eth0): Releasing backup interface
[  521.270034] bond0 (unregistering): Released all slaves