[  519.661535] bond0: (slave eth0): making interface the new active one
[  519.661663] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.857630] bond0: (slave eth0): Releasing backup interface
[  523.937218] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.088422] bond0: (slave eth0): Releasing backup interface
[  528.106292] bond0 (unregistering): Released all slaves