[  516.427849] bond0: (slave eth0): making interface the new active one
[  516.427941] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.665984] bond0: (slave eth0): Releasing backup interface
[  520.777954] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.949069] bond0: (slave eth0): Releasing backup interface
[  524.984996] bond0 (unregistering): Released all slaves