[  519.514614] bond0: (slave eth0): making interface the new active one
[  519.514795] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.825280] bond0: (slave eth0): Releasing backup interface
[  524.035278] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.285203] bond0: (slave eth0): Releasing backup interface
[  528.318085] bond0 (unregistering): Released all slaves