[  519.279099] bond0: (slave eth0): making interface the new active one
[  519.279227] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.633213] bond0: (slave eth0): Releasing backup interface
[  523.897627] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.157015] bond0: (slave eth0): Releasing backup interface
[  528.190015] bond0 (unregistering): Released all slaves