[  516.522430] bond0: (slave eth0): making interface the new active one
[  516.522525] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.725101] bond0: (slave eth0): Releasing backup interface
[  520.820868] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.023810] bond0: (slave eth0): Releasing backup interface
[  525.058827] bond0 (unregistering): Released all slaves