[  521.877994] bond0: (slave eth0): making interface the new active one
[  521.878097] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.037085] bond0: (slave eth0): Releasing backup interface
[  526.124553] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.325318] bond0: (slave eth0): Releasing backup interface
[  530.354211] bond0 (unregistering): Released all slaves