[  519.364343] bond0: (slave eth0): making interface the new active one
[  519.364432] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.610294] bond0: (slave eth0): Releasing backup interface
[  523.726420] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.893970] bond0: (slave eth0): Releasing backup interface
[  527.922951] bond0 (unregistering): Released all slaves