[  505.657570] bond0: (slave eth0): making interface the new active one
[  505.657690] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.845588] bond0: (slave eth0): Releasing backup interface
[  509.934287] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.074514] bond0: (slave eth0): Releasing backup interface
[  514.111559] bond0 (unregistering): Released all slaves