[  519.974348] bond0: (slave eth0): making interface the new active one
[  519.974423] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.187586] bond0: (slave eth0): Releasing backup interface
[  524.292000] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.469201] bond0: (slave eth0): Releasing backup interface
[  528.500133] bond0 (unregistering): Released all slaves