[  517.539668] bond0: (slave eth0): making interface the new active one
[  517.539773] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.737238] bond0: (slave eth0): Releasing backup interface
[  521.803821] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.958842] bond0: (slave eth0): Releasing backup interface
[  525.992874] bond0 (unregistering): Released all slaves