[  513.346153] bond0: (slave eth0): making interface the new active one
[  513.346226] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.525822] bond0: (slave eth0): Releasing backup interface
[  517.593545] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.750132] bond0: (slave eth0): Releasing backup interface
[  521.773157] bond0 (unregistering): Released all slaves