[  520.083948] bond0: (slave eth0): making interface the new active one
[  520.084022] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.238062] bond0: (slave eth0): Releasing backup interface
[  524.307980] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.470497] bond0: (slave eth0): Releasing backup interface
[  528.502472] bond0 (unregistering): Released all slaves