[  511.748131] bond0: (slave eth0): making interface the new active one
[  511.748220] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.931113] bond0: (slave eth0): Releasing backup interface
[  516.032626] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.210969] bond0: (slave eth0): Releasing backup interface
[  520.240950] bond0 (unregistering): Released all slaves