[  520.481818] bond0: (slave eth0): making interface the new active one
[  520.481896] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.707674] bond0: (slave eth0): Releasing backup interface
[  524.834892] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.059191] bond0: (slave eth0): Releasing backup interface
[  529.088077] bond0 (unregistering): Released all slaves