[  516.859144] bond0: (slave eth0): making interface the new active one
[  516.859241] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.033395] bond0: (slave eth0): Releasing backup interface
[  521.115912] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.261194] bond0: (slave eth0): Releasing backup interface
[  525.294077] bond0 (unregistering): Released all slaves