[  515.471571] bond0: (slave eth0): making interface the new active one
[  515.471635] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.710810] bond0: (slave eth0): Releasing backup interface
[  519.831503] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.054931] bond0: (slave eth0): Releasing backup interface
[  524.099910] bond0 (unregistering): Released all slaves