[  503.804107] bond0: (slave eth0): making interface the new active one
[  503.804223] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.989537] bond0: (slave eth0): Releasing backup interface
[  508.073315] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.218903] bond0: (slave eth0): Releasing backup interface
[  512.236498] bond0 (unregistering): Released all slaves