[  519.920393] bond0: (slave eth0): making interface the new active one
[  519.920485] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.108021] bond0: (slave eth0): Releasing backup interface
[  524.177736] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.331669] bond0: (slave eth0): Releasing backup interface
[  528.369590] bond0 (unregistering): Released all slaves