[  505.394215] bond0: (slave eth0): making interface the new active one
[  505.394374] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.608253] bond0: (slave eth0): Releasing backup interface
[  509.731156] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.960759] bond0: (slave eth0): Releasing backup interface
[  513.996466] bond0 (unregistering): Released all slaves