[  514.043100] bond0: (slave eth0): making interface the new active one
[  514.043203] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.230486] bond0: (slave eth0): Releasing backup interface
[  518.308224] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.450300] bond0: (slave eth0): Releasing backup interface
[  522.479261] bond0 (unregistering): Released all slaves