[  516.181644] bond0: (slave eth0): making interface the new active one
[  516.181718] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.340147] bond0: (slave eth0): Releasing backup interface
[  520.414796] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.566391] bond0: (slave eth0): Releasing backup interface
[  524.603402] bond0 (unregistering): Released all slaves