[  513.804294] bond0: (slave eth0): making interface the new active one
[  513.804392] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.046042] bond0: (slave eth0): Releasing backup interface
[  518.158795] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.331319] bond0: (slave eth0): Releasing backup interface
[  522.369145] bond0 (unregistering): Released all slaves