[  500.795070] bond0: (slave eth0): making interface the new active one
[  500.795183] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.976142] bond0: (slave eth0): Releasing backup interface
[  505.040029] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.202406] bond0: (slave eth0): Releasing backup interface
[  509.233488] bond0 (unregistering): Released all slaves