[  519.164866] bond0: (slave eth0): making interface the new active one
[  519.164982] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.346248] bond0: (slave eth0): Releasing backup interface
[  523.433570] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.572104] bond0: (slave eth0): Releasing backup interface
[  527.602102] bond0 (unregistering): Released all slaves