[  510.664820] bond0: (slave eth0): making interface the new active one
[  510.664908] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.829805] bond0: (slave eth0): Releasing backup interface
[  514.890139] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.058973] bond0: (slave eth0): Releasing backup interface
[  519.085042] bond0 (unregistering): Released all slaves