[  509.573653] bond0: (slave eth0): making interface the new active one
[  509.573753] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.743871] bond0: (slave eth0): Releasing backup interface
[  513.808591] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.973292] bond0: (slave eth0): Releasing backup interface
[  518.001204] bond0 (unregistering): Released all slaves