[  534.482888] bond0: (slave eth0): making interface the new active one
[  534.482994] bond0: (slave eth0): Enslaving as an active interface with an up link
[  538.635672] bond0: (slave eth0): Releasing backup interface
[  538.710579] bond0: (slave eth0): Enslaving as an active interface with an up link
[  542.860984] bond0: (slave eth0): Releasing backup interface