[  516.537319] bond0: (slave eth0): making interface the new active one
[  516.537386] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.731263] bond0: (slave eth0): Releasing backup interface
[  520.854862] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.080047] bond0: (slave eth0): Releasing backup interface
[  525.105973] bond0 (unregistering): Released all slaves