[  516.755875] bond0: (slave eth0): making interface the new active one
[  516.755978] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.915192] bond0: (slave eth0): Releasing backup interface
[  521.002819] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.147252] bond0: (slave eth0): Releasing backup interface
[  525.179332] bond0 (unregistering): Released all slaves