[  514.913992] bond0: (slave eth0): making interface the new active one
[  514.914068] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.133839] bond0: (slave eth0): Releasing backup interface
[  519.255484] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.488994] bond0: (slave eth0): Releasing backup interface
[  523.522956] bond0 (unregistering): Released all slaves