[  516.920592] bond0: (slave eth0): making interface the new active one
[  516.920695] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.128420] bond0: (slave eth0): Releasing backup interface
[  521.244874] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.411519] bond0: (slave eth0): Releasing backup interface
[  525.440528] bond0 (unregistering): Released all slaves