[  507.130183] bond0: (slave eth0): making interface the new active one
[  507.130266] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.306903] bond0: (slave eth0): Releasing backup interface
[  511.391063] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.533561] bond0: (slave eth0): Releasing backup interface
[  515.571342] bond0 (unregistering): Released all slaves