[  519.120356] bond0: (slave eth0): making interface the new active one
[  519.120441] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.352909] bond0: (slave eth0): Releasing backup interface
[  523.462902] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.646162] bond0: (slave eth0): Releasing backup interface
[  527.668848] bond0 (unregistering): Released all slaves