[  516.514401] bond0: (slave eth0): making interface the new active one
[  516.514477] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.736663] bond0: (slave eth0): Releasing backup interface
[  520.836583] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.020141] bond0: (slave eth0): Releasing backup interface
[  525.056106] bond0 (unregistering): Released all slaves