[  517.616108] bond0: (slave eth0): making interface the new active one
[  517.616173] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.819162] bond0: (slave eth0): Releasing backup interface
[  521.930879] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.115673] bond0: (slave eth0): Releasing backup interface
[  526.144237] bond0 (unregistering): Released all slaves