[  511.161749] bond0: (slave eth0): making interface the new active one
[  511.161845] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.418011] bond0: (slave eth0): Releasing backup interface
[  515.534655] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.708041] bond0: (slave eth0): Releasing backup interface
[  519.750029] bond0 (unregistering): Released all slaves