[  536.226931] bond0: (slave eth0): making interface the new active one
[  536.227007] bond0: (slave eth0): Enslaving as an active interface with an up link
[  540.449018] bond0: (slave eth0): Releasing backup interface
[  540.548807] bond0: (slave eth0): Enslaving as an active interface with an up link
[  544.737623] bond0: (slave eth0): Releasing backup interface