[  504.080408] bond0: (slave eth0): making interface the new active one
[  504.080498] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.243022] bond0: (slave eth0): Releasing backup interface
[  508.325532] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.476487] bond0: (slave eth0): Releasing backup interface
[  512.516493] bond0 (unregistering): Released all slaves