[  514.489523] bond0: (slave eth0): making interface the new active one
[  514.489616] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.752001] bond0: (slave eth0): Releasing backup interface
[  518.851367] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.029044] bond0: (slave eth0): Releasing backup interface
[  523.069072] bond0 (unregistering): Released all slaves