[  507.949481] bond0: (slave eth0): making interface the new active one
[  507.949552] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.147806] bond0: (slave eth0): Releasing backup interface
[  512.246873] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.431884] bond0: (slave eth0): Releasing backup interface
[  516.475867] bond0 (unregistering): Released all slaves