[  515.969644] bond0: (slave eth0): making interface the new active one
[  515.969742] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.215582] bond0: (slave eth0): Releasing backup interface
[  520.328078] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.507848] bond0: (slave eth0): Releasing backup interface
[  524.544791] bond0 (unregistering): Released all slaves