[  513.073896] bond0: (slave eth0): making interface the new active one
[  513.073981] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.265924] bond0: (slave eth0): Releasing backup interface
[  517.354077] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.495406] bond0: (slave eth0): Releasing backup interface
[  521.531289] bond0 (unregistering): Released all slaves