[  503.430682] bond0: (slave eth0): making interface the new active one
[  503.430822] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.623896] bond0: (slave eth0): Releasing backup interface
[  507.782243] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.021461] bond0: (slave eth0): Releasing backup interface
[  512.068470] bond0 (unregistering): Released all slaves