[  516.293496] bond0: (slave eth0): making interface the new active one
[  516.293587] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.537822] bond0: (slave eth0): Releasing backup interface
[  520.652992] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.830176] bond0: (slave eth0): Releasing backup interface
[  524.862070] bond0 (unregistering): Released all slaves