[  516.415834] bond0: (slave eth0): making interface the new active one
[  516.415921] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.664374] bond0: (slave eth0): Releasing backup interface
[  520.782535] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.951124] bond0: (slave eth0): Releasing backup interface
[  524.985087] bond0 (unregistering): Released all slaves