[  519.144263] bond0: (slave eth0): making interface the new active one
[  519.144386] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.348869] bond0: (slave eth0): Releasing backup interface
[  523.421621] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.580198] bond0: (slave eth0): Releasing backup interface
[  527.615126] bond0 (unregistering): Released all slaves