[  506.934958] bond0: (slave eth0): making interface the new active one
[  506.935030] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.124407] bond0: (slave eth0): Releasing backup interface
[  511.207409] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.354562] bond0: (slave eth0): Releasing backup interface
[  515.379392] bond0 (unregistering): Released all slaves