[  507.332335] bond0: (slave eth0): making interface the new active one
[  507.332447] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.516405] bond0: (slave eth0): Releasing backup interface
[  511.589677] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.745591] bond0: (slave eth0): Releasing backup interface
[  515.765525] bond0 (unregistering): Released all slaves