[  515.683809] bond0: (slave eth0): making interface the new active one
[  515.683918] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.891218] bond0: (slave eth0): Releasing backup interface
[  519.964563] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.121124] bond0: (slave eth0): Releasing backup interface
[  524.144054] bond0 (unregistering): Released all slaves