[  520.948072] bond0: (slave eth0): making interface the new active one
[  520.948184] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.132485] bond0: (slave eth0): Releasing backup interface
[  525.203992] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.361934] bond0: (slave eth0): Releasing backup interface
[  529.409809] bond0 (unregistering): Released all slaves