[  520.843575] bond0: (slave eth0): making interface the new active one
[  520.843669] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.004361] bond0: (slave eth0): Releasing backup interface
[  525.073677] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.230554] bond0: (slave eth0): Releasing backup interface
[  529.258472] bond0 (unregistering): Released all slaves