[  516.007484] bond0: (slave eth0): making interface the new active one
[  516.007564] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.160013] bond0: (slave eth0): Releasing backup interface
[  520.232355] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.384352] bond0: (slave eth0): Releasing backup interface
[  524.413287] bond0 (unregistering): Released all slaves