[  520.189462] bond0: (slave eth0): making interface the new active one
[  520.189566] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.445950] bond0: (slave eth0): Releasing backup interface
[  524.549448] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.726066] bond0: (slave eth0): Releasing backup interface
[  528.757117] bond0 (unregistering): Released all slaves