[  509.932718] bond0: (slave eth0): making interface the new active one
[  509.932808] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.132153] bond0: (slave eth0): Releasing backup interface
[  514.231797] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.414007] bond0: (slave eth0): Releasing backup interface
[  518.440939] bond0 (unregistering): Released all slaves