[  519.945850] bond0: (slave eth0): making interface the new active one
[  519.945949] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.110016] bond0: (slave eth0): Releasing backup interface
[  524.187865] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.334965] bond0: (slave eth0): Releasing backup interface
[  528.359865] bond0 (unregistering): Released all slaves