[  515.166209] bond0: (slave eth0): making interface the new active one
[  515.166502] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.451278] bond0: (slave eth0): Releasing backup interface
[  519.559047] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.728141] bond0: (slave eth0): Releasing backup interface
[  523.762162] bond0 (unregistering): Released all slaves