[  518.333995] bond0: (slave eth0): making interface the new active one
[  518.334079] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.498768] bond0: (slave eth0): Releasing backup interface
[  522.556097] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.720750] bond0: (slave eth0): Releasing backup interface
[  526.736517] bond0 (unregistering): Released all slaves