[  517.545455] bond0: (slave eth0): making interface the new active one
[  517.545534] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.740489] bond0: (slave eth0): Releasing backup interface
[  521.810461] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.965805] bond0: (slave eth0): Releasing backup interface
[  526.005778] bond0 (unregistering): Released all slaves