[  516.285197] bond0: (slave eth0): making interface the new active one
[  516.285311] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.482171] bond0: (slave eth0): Releasing backup interface
[  520.574874] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.770336] bond0: (slave eth0): Releasing backup interface
[  524.792272] bond0 (unregistering): Released all slaves