[  521.026620] bond0: (slave eth0): making interface the new active one
[  521.026698] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.195315] bond0: (slave eth0): Releasing backup interface
[  525.260354] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.416994] bond0: (slave eth0): Releasing backup interface
[  529.454950] bond0 (unregistering): Released all slaves