[  511.957841] bond0: (slave eth0): making interface the new active one
[  511.957934] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.191110] bond0: (slave eth0): Releasing backup interface
[  516.298211] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.482206] bond0: (slave eth0): Releasing backup interface
[  520.518169] bond0 (unregistering): Released all slaves