[  513.371149] bond0: (slave eth0): making interface the new active one
[  513.371218] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.523395] bond0: (slave eth0): Releasing backup interface
[  517.603613] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.749701] bond0: (slave eth0): Releasing backup interface
[  521.780671] bond0 (unregistering): Released all slaves