[  511.897811] bond0: (slave eth0): making interface the new active one
[  511.897880] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.117556] bond0: (slave eth0): Releasing backup interface
[  516.213209] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.411996] bond0: (slave eth0): Releasing backup interface
[  520.438927] bond0 (unregistering): Released all slaves