[  516.476906] bond0: (slave eth0): making interface the new active one
[  516.477032] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.663196] bond0: (slave eth0): Releasing backup interface
[  520.735775] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.889267] bond0: (slave eth0): Releasing backup interface
[  524.929196] bond0 (unregistering): Released all slaves