[  507.314042] bond0: (slave eth0): making interface the new active one
[  507.314137] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.510738] bond0: (slave eth0): Releasing backup interface
[  511.614581] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.798116] bond0: (slave eth0): Releasing backup interface
[  515.828082] bond0 (unregistering): Released all slaves