[  520.337156] bond0: (slave eth0): making interface the new active one
[  520.337234] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.492159] bond0: (slave eth0): Releasing backup interface
[  524.564818] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.715382] bond0: (slave eth0): Releasing backup interface
[  528.745357] bond0 (unregistering): Released all slaves