[  504.342634] bond0: (slave eth0): making interface the new active one
[  504.342712] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.565531] bond0: (slave eth0): Releasing backup interface
[  508.655136] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.858538] bond0: (slave eth0): Releasing backup interface
[  512.884229] bond0 (unregistering): Released all slaves