[  519.887053] bond0: (slave eth0): making interface the new active one
[  519.887130] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.036931] bond0: (slave eth0): Releasing backup interface
[  524.100268] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.265056] bond0: (slave eth0): Releasing backup interface
[  528.298004] bond0 (unregistering): Released all slaves