[  511.918492] bond0: (slave eth0): making interface the new active one
[  511.918595] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.121211] bond0: (slave eth0): Releasing backup interface
[  516.237248] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.403779] bond0: (slave eth0): Releasing backup interface
[  520.425681] bond0 (unregistering): Released all slaves