[  517.204471] bond0: (slave eth0): making interface the new active one
[  517.204573] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.438668] bond0: (slave eth0): Releasing backup interface
[  521.556363] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.725123] bond0: (slave eth0): Releasing backup interface
[  525.752976] bond0 (unregistering): Released all slaves