[  515.262273] bond0: (slave eth0): making interface the new active one
[  515.262369] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.513667] bond0: (slave eth0): Releasing backup interface
[  519.632995] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.872975] bond0: (slave eth0): Releasing backup interface
[  523.900837] bond0 (unregistering): Released all slaves