[  499.317988] bond0: (slave eth0): making interface the new active one
[  499.318070] bond0: (slave eth0): Enslaving as an active interface with an up link
[  503.499215] bond0: (slave eth0): Releasing backup interface
[  503.567650] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.726878] bond0: (slave eth0): Releasing backup interface
[  507.747199] bond0 (unregistering): Released all slaves