[  514.713952] bond0: (slave eth0): making interface the new active one
[  514.714047] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.940313] bond0: (slave eth0): Releasing backup interface
[  519.050966] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.224072] bond0: (slave eth0): Releasing backup interface
[  523.258935] bond0 (unregistering): Released all slaves