[  506.444026] bond0: (slave eth0): making interface the new active one
[  506.444114] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.601621] bond0: (slave eth0): Releasing backup interface
[  510.660304] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.831162] bond0: (slave eth0): Releasing backup interface
[  514.866197] bond0 (unregistering): Released all slaves