[  514.979697] bond0: (slave eth0): making interface the new active one
[  514.979817] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.262007] bond0: (slave eth0): Releasing backup interface
[  519.382927] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.537942] bond0: (slave eth0): Releasing backup interface
[  523.561928] bond0 (unregistering): Released all slaves