[  509.633076] bond0: (slave eth0): making interface the new active one
[  509.633140] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.811605] bond0: (slave eth0): Releasing backup interface
[  513.902442] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.104442] bond0: (slave eth0): Releasing backup interface
[  518.146878] bond0 (unregistering): Released all slaves