[  515.820436] bond0: (slave eth0): making interface the new active one
[  515.820542] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.011696] bond0: (slave eth0): Releasing backup interface
[  520.079950] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.241709] bond0: (slave eth0): Releasing backup interface
[  524.266650] bond0 (unregistering): Released all slaves