[  516.266095] bond0: (slave eth0): making interface the new active one
[  516.266163] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.476040] bond0: (slave eth0): Releasing backup interface
[  520.593776] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.767490] bond0: (slave eth0): Releasing backup interface
[  524.802007] bond0 (unregistering): Released all slaves