[  516.089962] bond0: (slave eth0): making interface the new active one
[  516.090056] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.294423] bond0: (slave eth0): Releasing backup interface
[  520.410268] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.586889] bond0: (slave eth0): Releasing backup interface
[  524.612323] bond0 (unregistering): Released all slaves