[  513.114481] bond0: (slave eth0): making interface the new active one
[  513.114565] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.336147] bond0: (slave eth0): Releasing backup interface
[  517.446149] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.624003] bond0: (slave eth0): Releasing backup interface
[  521.665925] bond0 (unregistering): Released all slaves