[  516.188837] bond0: (slave eth0): making interface the new active one
[  516.188921] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.404312] bond0: (slave eth0): Releasing backup interface
[  520.506914] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.697028] bond0: (slave eth0): Releasing backup interface
[  524.726866] bond0 (unregistering): Released all slaves