[  514.098092] bond0: (slave eth0): making interface the new active one
[  514.098152] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.297227] bond0: (slave eth0): Releasing backup interface
[  518.403815] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.581187] bond0: (slave eth0): Releasing backup interface
[  522.618105] bond0 (unregistering): Released all slaves