[  516.873870] bond0: (slave eth0): making interface the new active one
[  516.873969] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.041095] bond0: (slave eth0): Releasing backup interface
[  521.135283] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.325870] bond0: (slave eth0): Releasing backup interface
[  525.352831] bond0 (unregistering): Released all slaves