[  515.487206] bond0: (slave eth0): making interface the new active one
[  515.487298] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.773787] bond0: (slave eth0): Releasing backup interface
[  520.007014] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.277103] bond0: (slave eth0): Releasing backup interface
[  524.303047] bond0 (unregistering): Released all slaves