[  519.683486] bond0: (slave eth0): making interface the new active one
[  519.683559] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.854773] bond0: (slave eth0): Releasing backup interface
[  523.928764] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.078767] bond0: (slave eth0): Releasing backup interface
[  528.100614] bond0 (unregistering): Released all slaves