[  520.463712] bond0: (slave eth0): making interface the new active one
[  520.463804] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.715344] bond0: (slave eth0): Releasing backup interface
[  524.813654] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.004145] bond0: (slave eth0): Releasing backup interface
[  529.036188] bond0 (unregistering): Released all slaves