[  516.178725] bond0: (slave eth0): making interface the new active one
[  516.178801] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.406297] bond0: (slave eth0): Releasing backup interface
[  520.501450] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.691957] bond0: (slave eth0): Releasing backup interface
[  524.722927] bond0 (unregistering): Released all slaves