[  501.858700] bond0: (slave eth0): making interface the new active one
[  501.858815] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.066636] bond0: (slave eth0): Releasing backup interface
[  506.143606] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.296171] bond0: (slave eth0): Releasing backup interface
[  510.337405] bond0 (unregistering): Released all slaves