[  517.407442] bond0: (slave eth0): making interface the new active one
[  517.407564] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.753879] bond0: (slave eth0): Releasing backup interface
[  521.858893] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.036115] bond0: (slave eth0): Releasing backup interface
[  526.074041] bond0 (unregistering): Released all slaves