[  513.227706] bond0: (slave eth0): making interface the new active one
[  513.227780] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.467890] bond0: (slave eth0): Releasing backup interface
[  517.580256] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.758062] bond0: (slave eth0): Releasing backup interface
[  521.779961] bond0 (unregistering): Released all slaves