[  501.663527] bond0: (slave eth0): making interface the new active one
[  501.663657] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.876362] bond0: (slave eth0): Releasing backup interface
[  505.961601] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.108392] bond0: (slave eth0): Releasing backup interface
[  510.135201] bond0 (unregistering): Released all slaves