[  513.465625] bond0: (slave eth0): making interface the new active one
[  513.465701] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.653023] bond0: (slave eth0): Releasing backup interface
[  517.753334] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.944750] bond0: (slave eth0): Releasing backup interface
[  521.980751] bond0 (unregistering): Released all slaves