[  514.999242] bond0: (slave eth0): making interface the new active one
[  514.999363] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.259444] bond0: (slave eth0): Releasing backup interface
[  519.370819] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.548177] bond0: (slave eth0): Releasing backup interface
[  523.585124] bond0 (unregistering): Released all slaves