[  517.427109] bond0: (slave eth0): making interface the new active one
[  517.427232] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.609842] bond0: (slave eth0): Releasing backup interface
[  521.681928] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.836998] bond0: (slave eth0): Releasing backup interface
[  525.867026] bond0 (unregistering): Released all slaves