[  520.749286] bond0: (slave eth0): making interface the new active one
[  520.749380] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.946569] bond0: (slave eth0): Releasing backup interface
[  525.022035] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.171274] bond0: (slave eth0): Releasing backup interface
[  529.211195] bond0 (unregistering): Released all slaves