[  509.532841] bond0: (slave eth0): making interface the new active one
[  509.532934] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.750348] bond0: (slave eth0): Releasing backup interface
[  513.849354] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.037008] bond0: (slave eth0): Releasing backup interface
[  518.060953] bond0 (unregistering): Released all slaves