[  514.398573] bond0: (slave eth0): making interface the new active one
[  514.398641] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.546305] bond0: (slave eth0): Releasing backup interface
[  518.619245] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.768265] bond0: (slave eth0): Releasing backup interface
[  522.793227] bond0 (unregistering): Released all slaves