[  505.656944] bond0: (slave eth0): making interface the new active one
[  505.657059] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.834119] bond0: (slave eth0): Releasing backup interface
[  509.918979] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.065699] bond0: (slave eth0): Releasing backup interface
[  514.095449] bond0 (unregistering): Released all slaves