[  516.459113] bond0: (slave eth0): making interface the new active one
[  516.459203] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.662905] bond0: (slave eth0): Releasing backup interface
[  520.749605] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.951209] bond0: (slave eth0): Releasing backup interface
[  524.982170] bond0 (unregistering): Released all slaves