[  516.176829] bond0: (slave eth0): making interface the new active one
[  516.176898] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.356741] bond0: (slave eth0): Releasing backup interface
[  520.439768] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.587015] bond0: (slave eth0): Releasing backup interface
[  524.619874] bond0 (unregistering): Released all slaves