[  516.462809] bond0: (slave eth0): making interface the new active one
[  516.462896] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.732486] bond0: (slave eth0): Releasing backup interface
[  520.848473] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.018469] bond0: (slave eth0): Releasing backup interface
[  525.048355] bond0 (unregistering): Released all slaves