[  511.721766] bond0: (slave eth0): making interface the new active one
[  511.721862] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.927877] bond0: (slave eth0): Releasing backup interface
[  516.038002] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.217797] bond0: (slave eth0): Releasing backup interface
[  520.247782] bond0 (unregistering): Released all slaves