[  514.948594] bond0: (slave eth0): making interface the new active one
[  514.948682] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.193368] bond0: (slave eth0): Releasing backup interface
[  519.302780] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.477253] bond0: (slave eth0): Releasing backup interface
[  523.515152] bond0 (unregistering): Released all slaves