[  511.733320] bond0: (slave eth0): making interface the new active one
[  511.733387] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.924920] bond0: (slave eth0): Releasing backup interface
[  516.018567] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.211130] bond0: (slave eth0): Releasing backup interface
[  520.237988] bond0 (unregistering): Released all slaves