[  542.567082] bond0: (slave eth0): making interface the new active one
[  542.567157] bond0: (slave eth0): Enslaving as an active interface with an up link
[  546.773095] bond0: (slave eth0): Releasing backup interface
[  546.880316] bond0: (slave eth0): Enslaving as an active interface with an up link
[  551.064429] bond0: (slave eth0): Releasing backup interface
[  551.095702] bond0 (unregistering): Released all slaves