[  503.200118] bond0: (slave eth0): making interface the new active one
[  503.200177] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.403922] bond0: (slave eth0): Releasing backup interface
[  507.485863] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.632794] bond0: (slave eth0): Releasing backup interface
[  511.656654] bond0 (unregistering): Released all slaves