[  517.760048] bond0: (slave eth0): making interface the new active one
[  517.760130] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.934569] bond0: (slave eth0): Releasing backup interface
[  522.015531] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.155737] bond0: (slave eth0): Releasing backup interface
[  526.191760] bond0 (unregistering): Released all slaves