[  521.727910] bond0: (slave eth0): making interface the new active one
[  521.727989] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.977142] bond0: (slave eth0): Releasing backup interface
[  526.089317] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.263949] bond0: (slave eth0): Releasing backup interface
[  530.295917] bond0 (unregistering): Released all slaves