[  515.650667] bond0: (slave eth0): making interface the new active one
[  515.650778] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.902337] bond0: (slave eth0): Releasing backup interface
[  520.022617] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.250068] bond0: (slave eth0): Releasing backup interface
[  524.281075] bond0 (unregistering): Released all slaves