[  516.704083] bond0: (slave eth0): making interface the new active one
[  516.704177] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.905675] bond0: (slave eth0): Releasing backup interface
[  520.969275] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.136707] bond0: (slave eth0): Releasing backup interface
[  525.165668] bond0 (unregistering): Released all slaves