[  501.463124] bond0: (slave eth0): making interface the new active one
[  501.463195] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.614900] bond0: (slave eth0): Releasing backup interface
[  505.682519] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.846329] bond0: (slave eth0): Releasing backup interface
[  509.872221] bond0 (unregistering): Released all slaves