[  511.397625] bond0: (slave eth0): making interface the new active one
[  511.397705] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.598566] bond0: (slave eth0): Releasing backup interface
[  515.676350] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.823369] bond0: (slave eth0): Releasing backup interface
[  519.859295] bond0 (unregistering): Released all slaves