[  516.379859] bond0: (slave eth0): making interface the new active one
[  516.379955] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.603818] bond0: (slave eth0): Releasing backup interface
[  520.732011] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.954963] bond0: (slave eth0): Releasing backup interface
[  524.983931] bond0 (unregistering): Released all slaves