[  517.336476] bond0: (slave eth0): making interface the new active one
[  517.336549] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.480210] bond0: (slave eth0): Releasing backup interface
[  521.545554] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.712364] bond0: (slave eth0): Releasing backup interface
[  525.750245] bond0 (unregistering): Released all slaves