[  505.706507] bond0: (slave eth0): making interface the new active one
[  505.706650] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.899454] bond0: (slave eth0): Releasing backup interface
[  509.984769] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.125519] bond0: (slave eth0): Releasing backup interface
[  514.156439] bond0 (unregistering): Released all slaves