[  514.975667] bond0: (slave eth0): making interface the new active one
[  514.975747] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.189890] bond0: (slave eth0): Releasing backup interface
[  519.301301] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.473993] bond0: (slave eth0): Releasing backup interface
[  523.501932] bond0 (unregistering): Released all slaves