[  516.040681] bond0: (slave eth0): making interface the new active one
[  516.040820] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.213613] bond0: (slave eth0): Releasing backup interface
[  520.296982] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.445183] bond0: (slave eth0): Releasing backup interface
[  524.481238] bond0 (unregistering): Released all slaves