[  516.187391] bond0: (slave eth0): making interface the new active one
[  516.187478] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.413044] bond0: (slave eth0): Releasing backup interface
[  520.535212] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.700201] bond0: (slave eth0): Releasing backup interface
[  524.734302] bond0 (unregistering): Released all slaves