[  520.278301] bond0: (slave eth0): making interface the new active one
[  520.278374] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.504352] bond0: (slave eth0): Releasing backup interface
[  524.588971] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.785101] bond0: (slave eth0): Releasing backup interface
[  528.821032] bond0 (unregistering): Released all slaves