[  519.368345] bond0: (slave eth0): making interface the new active one
[  519.368414] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.531536] bond0: (slave eth0): Releasing backup interface
[  523.605395] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.754142] bond0: (slave eth0): Releasing backup interface
[  527.777234] bond0 (unregistering): Released all slaves