[  519.972483] bond0: (slave eth0): making interface the new active one
[  519.972572] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.186242] bond0: (slave eth0): Releasing backup interface
[  524.298053] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.472058] bond0: (slave eth0): Releasing backup interface
[  528.507035] bond0 (unregistering): Released all slaves