[  516.867784] bond0: (slave eth0): making interface the new active one
[  516.867879] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.111328] bond0: (slave eth0): Releasing backup interface
[  521.221907] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.400137] bond0: (slave eth0): Releasing backup interface
[  525.435143] bond0 (unregistering): Released all slaves