[  506.956123] bond0: (slave eth0): making interface the new active one
[  506.956217] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.127963] bond0: (slave eth0): Releasing backup interface
[  511.194823] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.354507] bond0: (slave eth0): Releasing backup interface
[  515.390485] bond0 (unregistering): Released all slaves