[  514.484555] bond0: (slave eth0): making interface the new active one
[  514.484646] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.740447] bond0: (slave eth0): Releasing backup interface
[  518.853130] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.032893] bond0: (slave eth0): Releasing backup interface
[  523.065834] bond0 (unregistering): Released all slaves