[  516.652526] bond0: (slave eth0): making interface the new active one
[  516.652613] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.846721] bond0: (slave eth0): Releasing backup interface
[  520.913731] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.077173] bond0: (slave eth0): Releasing backup interface
[  525.103127] bond0 (unregistering): Released all slaves