[  513.546324] bond0: (slave eth0): making interface the new active one
[  513.546467] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.715531] bond0: (slave eth0): Releasing backup interface
[  517.794996] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.945527] bond0: (slave eth0): Releasing backup interface
[  521.983556] bond0 (unregistering): Released all slaves