[  517.235296] bond0: (slave eth0): making interface the new active one
[  517.235358] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.437656] bond0: (slave eth0): Releasing backup interface
[  521.553306] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.721052] bond0: (slave eth0): Releasing backup interface
[  525.750090] bond0 (unregistering): Released all slaves