[  516.051829] bond0: (slave eth0): making interface the new active one
[  516.051912] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.287607] bond0: (slave eth0): Releasing backup interface
[  520.393081] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.575088] bond0: (slave eth0): Releasing backup interface
[  524.603973] bond0 (unregistering): Released all slaves