[  521.313005] bond0: (slave eth0): making interface the new active one
[  521.313101] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.514600] bond0: (slave eth0): Releasing backup interface
[  525.579457] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.743447] bond0: (slave eth0): Releasing backup interface
[  529.775361] bond0 (unregistering): Released all slaves