[  518.973116] bond0: (slave eth0): making interface the new active one
[  518.973203] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.145853] bond0: (slave eth0): Releasing backup interface
[  523.209304] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.368983] bond0: (slave eth0): Releasing backup interface
[  527.393909] bond0 (unregistering): Released all slaves