[  507.007257] bond0: (slave eth0): making interface the new active one
[  507.007333] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.187296] bond0: (slave eth0): Releasing backup interface
[  511.266897] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.418380] bond0: (slave eth0): Releasing backup interface
[  515.439365] bond0 (unregistering): Released all slaves