[  517.080851] bond0: (slave eth0): making interface the new active one
[  517.080936] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.312018] bond0: (slave eth0): Releasing backup interface
[  521.434447] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.663997] bond0: (slave eth0): Releasing backup interface
[  525.689992] bond0 (unregistering): Released all slaves