[  539.149998] bond0: (slave eth0): making interface the new active one
[  539.150057] bond0: (slave eth0): Enslaving as an active interface with an up link
[  543.379744] bond0: (slave eth0): Releasing backup interface
[  543.481208] bond0: (slave eth0): Enslaving as an active interface with an up link
[  547.663768] bond0: (slave eth0): Releasing backup interface
[  547.694722] bond0 (unregistering): Released all slaves