[  515.798147] bond0: (slave eth0): making interface the new active one
[  515.798215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.021093] bond0: (slave eth0): Releasing backup interface
[  520.108444] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.309887] bond0: (slave eth0): Releasing backup interface
[  524.341797] bond0 (unregistering): Released all slaves