[  516.162556] bond0: (slave eth0): making interface the new active one
[  516.162630] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.408662] bond0: (slave eth0): Releasing backup interface
[  520.527991] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.703161] bond0: (slave eth0): Releasing backup interface
[  524.732019] bond0 (unregistering): Released all slaves