[  515.016756] bond0: (slave eth0): making interface the new active one
[  515.016860] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.189385] bond0: (slave eth0): Releasing backup interface
[  519.274009] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.412455] bond0: (slave eth0): Releasing backup interface
[  523.436487] bond0 (unregistering): Released all slaves