[  511.747521] bond0: (slave eth0): making interface the new active one
[  511.747826] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.060992] bond0: (slave eth0): Releasing backup interface
[  516.180050] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.410005] bond0: (slave eth0): Releasing backup interface
[  520.448963] bond0 (unregistering): Released all slaves