[  516.345902] bond0: (slave eth0): making interface the new active one
[  516.346007] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.669012] bond0: (slave eth0): Releasing backup interface
[  520.793023] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.018367] bond0: (slave eth0): Releasing backup interface
[  525.052122] bond0 (unregistering): Released all slaves