[  501.517389] bond0: (slave eth0): making interface the new active one
[  501.517479] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.669295] bond0: (slave eth0): Releasing backup interface
[  505.733337] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.898631] bond0: (slave eth0): Releasing backup interface
[  509.931392] bond0 (unregistering): Released all slaves