[  501.023788] bond0: (slave eth0): making interface the new active one
[  501.023922] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.234399] bond0: (slave eth0): Releasing backup interface
[  505.311926] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.459283] bond0: (slave eth0): Releasing backup interface
[  509.481172] bond0 (unregistering): Released all slaves