[  511.853276] bond0: (slave eth0): making interface the new active one
[  511.853345] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.060316] bond0: (slave eth0): Releasing backup interface
[  516.169606] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.340958] bond0: (slave eth0): Releasing backup interface
[  520.372860] bond0 (unregistering): Released all slaves