[  516.093423] bond0: (slave eth0): making interface the new active one
[  516.093509] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.280040] bond0: (slave eth0): Releasing backup interface
[  520.379854] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.564979] bond0: (slave eth0): Releasing backup interface
[  524.586854] bond0 (unregistering): Released all slaves