[  517.486079] bond0: (slave eth0): making interface the new active one
[  517.486153] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.685135] bond0: (slave eth0): Releasing backup interface
[  521.775767] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.973854] bond0: (slave eth0): Releasing backup interface
[  526.009725] bond0 (unregistering): Released all slaves