[  514.736219] bond0: (slave eth0): making interface the new active one
[  514.736296] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.946785] bond0: (slave eth0): Releasing backup interface
[  519.059208] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.238089] bond0: (slave eth0): Releasing backup interface
[  523.273176] bond0 (unregistering): Released all slaves