[  515.900295] bond0: (slave eth0): making interface the new active one
[  515.900365] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.156394] bond0: (slave eth0): Releasing backup interface
[  520.271604] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.441903] bond0: (slave eth0): Releasing backup interface
[  524.475892] bond0 (unregistering): Released all slaves