[  516.987753] bond0: (slave eth0): making interface the new active one
[  516.987893] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.162154] bond0: (slave eth0): Releasing backup interface
[  521.244978] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.385295] bond0: (slave eth0): Releasing backup interface
[  525.423304] bond0 (unregistering): Released all slaves