[  515.122751] bond0: (slave eth0): making interface the new active one
[  515.122862] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.405843] bond0: (slave eth0): Releasing backup interface
[  519.549012] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.737659] bond0: (slave eth0): Releasing backup interface
[  523.760509] bond0 (unregistering): Released all slaves