[  517.447992] bond0: (slave eth0): making interface the new active one
[  517.448086] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.691157] bond0: (slave eth0): Releasing backup interface
[  521.796978] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.977099] bond0: (slave eth0): Releasing backup interface
[  526.009024] bond0 (unregistering): Released all slaves