[  519.718121] bond0: (slave eth0): making interface the new active one
[  519.718193] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.863526] bond0: (slave eth0): Releasing backup interface
[  523.937810] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.089512] bond0: (slave eth0): Releasing backup interface
[  528.119267] bond0 (unregistering): Released all slaves