[  514.498540] bond0: (slave eth0): making interface the new active one
[  514.498622] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.680947] bond0: (slave eth0): Releasing backup interface
[  518.790939] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.966987] bond0: (slave eth0): Releasing backup interface
[  522.990931] bond0 (unregistering): Released all slaves