[  519.474402] bond0: (slave eth0): making interface the new active one
[  519.474472] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.671415] bond0: (slave eth0): Releasing backup interface
[  523.784876] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.963278] bond0: (slave eth0): Releasing backup interface
[  527.991000] bond0 (unregistering): Released all slaves