[  504.460941] bond0: (slave eth0): making interface the new active one
[  504.461023] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.629841] bond0: (slave eth0): Releasing backup interface
[  508.712012] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.854711] bond0: (slave eth0): Releasing backup interface
[  512.892711] bond0 (unregistering): Released all slaves