[  520.425671] bond0: (slave eth0): making interface the new active one
[  520.425764] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.626673] bond0: (slave eth0): Releasing backup interface
[  524.705145] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.850605] bond0: (slave eth0): Releasing backup interface
[  528.877408] bond0 (unregistering): Released all slaves