[  515.702296] bond0: (slave eth0): making interface the new active one
[  515.702357] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.918779] bond0: (slave eth0): Releasing backup interface
[  520.002724] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.197139] bond0: (slave eth0): Releasing backup interface
[  524.228026] bond0 (unregistering): Released all slaves