[  520.116843] bond0: (slave eth0): making interface the new active one
[  520.116935] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.307146] bond0: (slave eth0): Releasing backup interface
[  524.376841] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.524689] bond0: (slave eth0): Releasing backup interface
[  528.565652] bond0 (unregistering): Released all slaves