[  506.721082] bond0: (slave eth0): making interface the new active one
[  506.721178] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.931134] bond0: (slave eth0): Releasing backup interface
[  511.019872] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.218736] bond0: (slave eth0): Releasing backup interface
[  515.258886] bond0 (unregistering): Released all slaves