[  519.737553] bond0: (slave eth0): making interface the new active one
[  519.737642] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.921411] bond0: (slave eth0): Releasing backup interface
[  523.996905] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.156569] bond0: (slave eth0): Releasing backup interface
[  528.186189] bond0 (unregistering): Released all slaves