[  517.576938] bond0: (slave eth0): making interface the new active one
[  517.577008] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.833726] bond0: (slave eth0): Releasing backup interface
[  521.965656] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.181212] bond0: (slave eth0): Releasing backup interface
[  526.209140] bond0 (unregistering): Released all slaves