[  521.811101] bond0: (slave eth0): making interface the new active one
[  521.811205] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.966773] bond0: (slave eth0): Releasing backup interface
[  526.034100] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.196399] bond0: (slave eth0): Releasing backup interface
[  530.226027] bond0 (unregistering): Released all slaves