[  520.298004] bond0: (slave eth0): making interface the new active one
[  520.298108] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.510678] bond0: (slave eth0): Releasing backup interface
[  524.654559] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.857123] bond0: (slave eth0): Releasing backup interface
[  528.890172] bond0 (unregistering): Released all slaves