[  517.401545] bond0: (slave eth0): making interface the new active one
[  517.401617] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.626425] bond0: (slave eth0): Releasing backup interface
[  521.734298] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.909004] bond0: (slave eth0): Releasing backup interface
[  525.936926] bond0 (unregistering): Released all slaves