[  517.444501] bond0: (slave eth0): making interface the new active one
[  517.444565] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.636518] bond0: (slave eth0): Releasing backup interface
[  521.740468] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.922234] bond0: (slave eth0): Releasing backup interface
[  525.952152] bond0 (unregistering): Released all slaves