[  519.394664] bond0: (slave eth0): making interface the new active one
[  519.394742] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.614093] bond0: (slave eth0): Releasing backup interface
[  523.731346] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.969229] bond0: (slave eth0): Releasing backup interface
[  527.995199] bond0 (unregistering): Released all slaves