[  521.916239] bond0: (slave eth0): making interface the new active one
[  521.916334] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.094084] bond0: (slave eth0): Releasing backup interface
[  526.168574] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.317656] bond0: (slave eth0): Releasing backup interface
[  530.345590] bond0 (unregistering): Released all slaves