[  515.877916] bond0: (slave eth0): making interface the new active one
[  515.877999] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.075469] bond0: (slave eth0): Releasing backup interface
[  520.144865] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.304777] bond0: (slave eth0): Releasing backup interface
[  524.325729] bond0 (unregistering): Released all slaves