[  507.140842] bond0: (slave eth0): making interface the new active one
[  507.140938] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.314967] bond0: (slave eth0): Releasing backup interface
[  511.409935] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.604026] bond0: (slave eth0): Releasing backup interface
[  515.647773] bond0 (unregistering): Released all slaves