[  519.780884] bond0: (slave eth0): making interface the new active one
[  519.780964] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.979663] bond0: (slave eth0): Releasing backup interface
[  524.051925] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.211024] bond0: (slave eth0): Releasing backup interface
[  528.240972] bond0 (unregistering): Released all slaves