[  511.637906] bond0: (slave eth0): making interface the new active one
[  511.638009] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.869025] bond0: (slave eth0): Releasing backup interface
[  515.968000] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.146136] bond0: (slave eth0): Releasing backup interface
[  520.180056] bond0 (unregistering): Released all slaves