[  516.169498] bond0: (slave eth0): making interface the new active one
[  516.169577] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.412866] bond0: (slave eth0): Releasing backup interface
[  520.525069] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.708003] bond0: (slave eth0): Releasing backup interface
[  524.747028] bond0 (unregistering): Released all slaves