[  515.770087] bond0: (slave eth0): making interface the new active one
[  515.770186] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.092607] bond0: (slave eth0): Releasing backup interface
[  520.219376] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.435963] bond0: (slave eth0): Releasing backup interface
[  524.465856] bond0 (unregistering): Released all slaves