[  517.345971] bond0: (slave eth0): making interface the new active one
[  517.346095] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.544415] bond0: (slave eth0): Releasing backup interface
[  521.610636] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.773940] bond0: (slave eth0): Releasing backup interface
[  525.796999] bond0 (unregistering): Released all slaves