[  511.482192] bond0: (slave eth0): making interface the new active one
[  511.482298] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.740460] bond0: (slave eth0): Releasing backup interface
[  515.857490] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.031121] bond0: (slave eth0): Releasing backup interface
[  520.058105] bond0 (unregistering): Released all slaves