[  519.791714] bond0: (slave eth0): making interface the new active one
[  519.791787] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.981134] bond0: (slave eth0): Releasing backup interface
[  524.062862] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.207426] bond0: (slave eth0): Releasing backup interface
[  528.236305] bond0 (unregistering): Released all slaves