[  519.801571] bond0: (slave eth0): making interface the new active one
[  519.801669] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.982410] bond0: (slave eth0): Releasing backup interface
[  524.057755] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.209790] bond0: (slave eth0): Releasing backup interface
[  528.234762] bond0 (unregistering): Released all slaves