[  511.381150] bond0: (slave eth0): making interface the new active one
[  511.381239] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.621736] bond0: (slave eth0): Releasing backup interface
[  515.735099] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.903180] bond0: (slave eth0): Releasing backup interface
[  519.936185] bond0 (unregistering): Released all slaves